Rechercher par propriété

Cette page fournit une simple interface de navigation pour trouver des entités décrites par une propriété et une valeur nommée. D’autres interfaces de recherche disponibles comprennent la page recherche de propriété, et le constructeur de requêtes « ask ».

Une liste de toutes les pages qui ont la propriété « Text« Text » est une propriété prédéfinie fournie par <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">MediaWiki Sémantique</a> et qui représente un texte de longueur quelconque. » avec la valeur « El Acaparamiento de Tierras es la expresión en español para referirse al término en inglés Land Grabbing. El acaparamiento de tierras se refiere al nuevo ciclo mundial de apropiación de tierras que se inició en el año 2008 a partir de la crisis alimentaria que se desató durante ese año. ». Puisqu’il n’y a que quelques résultats, les valeurs proches sont également affichées.

Affichage de 26 résultats à partir du nº 1.

Propriété : Valeur :

Liste de résultats

Semences + (A seed is an embryonic plant enclosed in a … A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm plants. Seeds are the product of the ripened ovule, after the embryo sac is fertilized by sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote, and grows within the mother plant to a certain size before growth is halted. The seed coat arises from the integuments of the ovule. Seeds have been an important development in the reproduction and success of vegetable gymnosperm and angiosperm plants, relative to more primitive plants such as ferns, mosses and liverworts, which do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological niches on land, from forests to grasslands both in hot and cold climates. The term "seed" also has a general meaning that antedates the above – anything that can be sown, e.g. "seed" potatoes, "seeds" of corn or sunflower "seeds". In the case of sunflower and corn "seeds", what is sown is the seed enclosed in a shell or husk, whereas the potato is a tuber. In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate it. Many structures commonly referred to as "seeds" are actually dry fruits. Sunflower seeds are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut.iscent seed, such as an acorn or hazelnut.)
Trottoirs + (A sidewalk (North American English), pavem … A sidewalk (North American English), pavement (British English), footpath in Australia, India, New Zealand and Ireland, or footway, is a path along the side of a street, highway, terminals. Usually constructed of concrete, pavers, brick, stone, or asphalt, it is designed for pedestrians. A sidewalk is normally higher than the roadway, and separated from it by a kerb (spelled "curb" in North America). There may also be a planted strip between the sidewalk and the roadway and between the roadway and the adjacent land. In some places, the same term may also be used for a paved path, trail or footpath that is not next to a road, for example, a path through a park. road, for example, a path through a park.)
Industrie agroalimentaire + (Agribusiness is the industry, enterprises, … Agribusiness is the industry, enterprises, and the field of study of value chains in agriculture and in the bio-economy,in which case it is also called bio-business or bio-enterprise. The primary goal of agribusiness is to maximize profit while sustainably satisfying the needs of consumers for products related to natural resources such as biotechnology, farms, food, forestry, fisheries, fuel, and fiber — usually with the exclusion of non-renewable resources such as mining. Studies of business growth and performance in farming have found successful agricultural businesses are cost-efficient internally and operate in favorable economic, political, and physical-organic environments. They are able to expand and make profits, improve the productivity of land, labor, and capital, and keep their costs down to ensure market price competitiveness. Agribusiness is not limited to farming. It encompasses a broader spectrum through the agribusiness system which includes input supplies, value-addition, marketing, entrepreneurship, microfinancing, and agricultural extension. In some countries like the Philippines, creation and management of agribusiness enterprises require consultation with registered agriculturists above a certain level of operations, capitalization, land area, or number of animals in the farm.nd area, or number of animals in the farm.)
Cartographie + (Cartography (/kɑːrˈtɒɡrəfi/; from Ancient … Cartography (/kɑːrˈtɒɡrəfi/; from Ancient Greek: χάρτης chartēs, "papyrus, sheet of paper, map"; and γράφειν graphein, "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an imagined reality) can be modeled in ways that communicate spatial information effectively. The fundamental objectives of traditional cartography are to: * Set the map's agenda and select traits of the object to be mapped. This is the concern of map editing. Traits may be physical, such as roads or land masses, or may be abstract, such as toponyms or political boundaries. * Represent the terrain of the mapped object on flat media. This is the concern of map projections. * Eliminate characteristics of the mapped object that are not relevant to the map's purpose. This is the concern of generalization. * Reduce the complexity of the characteristics that will be mapped. This is also the concern of generalization. * Orchestrate the elements of the map to best convey its message to its audience. This is the concern of . Modern cartography constitutes many theoretical and practical foundations of geographic information systems (GIS) and geographic information science (GISc).and geographic information science (GISc).)
Participation citoyenne + (Civic engagement or civic participation is … Civic engagement or civic participation is any individual or group activity addressing issues of public concern. Civic engagement includes communities working together or individuals working alone in both political and non-political actions to protect public values or make a change in a community. The goal of civic engagement is to address public concerns and promote the quality of the community. Civic engagement is "a process in which people take collective action to address issues of public concern" and is "instrumental to democracy" (Checkoway & Aldana, 2012). Underrepresentation of groups in the government causes issues faced by groups such as minority, low-income, and younger groups to be overlooked or ignored. In turn, issues for higher voting groups are addressed more frequently, causing more bills to be passed to fix these problems (Griffin & Newman, 2008).o fix these problems (Griffin & Newman, 2008).)
Anti-capitalisme + (El término anticapitalismo se refiere a un … El término anticapitalismo se refiere a una extensa colección de ideologías, movimientos y actitudes que se oponen en forma total, o parcial, al capitalismo. En general, algunos anticapitalistas pueden estar a favor de algún tipo de colectivismo o comunitarismo económico o social, pero no todos y no necesariamente (existen anticapitalistas que defienden diferentes niveles de propiedad privada). Lo siguiente es una breve descripción de las ideologías, de los puntos de vista y de las tendencias más notables del contracapitalismo.encias más notables del contracapitalismo.)
Enclosure + (Enclosure or Inclosure is a term, used in … Enclosure or Inclosure is a term, used in English landownership, that refers to the appropriation of "waste" or "common land" enclosing it and by doing so depriving commoners of their rights of access and privilege. Agreements to enclose land could be either through a formal or informal process. The process could normally be accomplished in three ways. First there was the creation of "closes", taken out of larger common fields by their owners. Secondly, there was enclosure by proprietors, owners who acted together, usually small farmers or squires, leading to the enclosure of whole parishes. Finally there were enclosures by Acts of Parliament. The primary reason for enclosure was to improve the efficiency of agriculture. However, there were other motives too, one example being that the value of the land enclosed would be substantially increased. There were social consequences to the policy, with many protests at the removal of rights from the common people. Enclosure riots are seen by historians as 'the pre-eminent form' of social protest from the 1530s to 1640s.of social protest from the 1530s to 1640s.)
Justice environnementale + (Environmental justice is a social movement … Environmental justice is a social movement to address the unfair exposure of poor and marginalized communities to harms from hazardous waste, resource extraction, and other land uses. The movement has generated hundreds of studies showing that exposure to environmental harms is inequitably distributed. The global environmental justice movement arises from place-based environmental conflicts in which local environmental defenders frequently confront multi-national corporations in resource extraction or other industries. Local outcomes of these conflicts are increasingly influenced by trans-national environmental justice networks. The movement began in the United States in the 1980s and was heavily influenced by the American civil rights movement. The original conception of environmental justice in the 1980s focused on harms to marginalised racial groups within rich countries such as the United States and was framed as environmental racism. The movement was later expanded to consider gender, international environmental discrimination, and inequalities within disadvantaged groups. As the movement achieved some success in more affluent countries, environmental burdens have shifted to the Global South (as for example through extractivism or the global waste trade). The movement for environmental justice has thus become more global, with some of its aims now being articulated by the United Nations. Environmental justice scholars have produced a large interdisciplinary body of social science literature that includes political ecology, contributions to environmental law, and theories on justice and sustainability.nd theories on justice and sustainability.)
Eaux souterraines + (Groundwater is the water present beneath E … Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically, groundwater is thought of as water flowing through shallow aquifers, but, in the technical sense, it can also contain soil moisture, permafrost (frozen soil), immobile water in very low permeability bedrock, and deep geothermal or oil formation water. Groundwater is hypothesized to provide lubrication that can possibly influence the movement of faults. It is likely that much of Earth's subsurface contains some water, which may be mixed with other fluids in some instances. Groundwater is often cheaper, more convenient and less vulnerable to pollution than surface water. Therefore, it is commonly used for public water supplies. For example, groundwater provides the largest source of usable water storage in the United States, and California annually withdraws the largest amount of groundwater of all the states. Underground reservoirs contain far more water than the capacity of all surface reservoirs and lakes in the US, including the Great Lakes. Many municipal water supplies are derived solely from groundwater. Over 2 billion people rely on it as their primary water source worldwide. Use of groundwater has related environmental issues. For example, polluted groundwater is less visible and more difficult to clean up than pollution in rivers and lakes. Groundwater pollution most often results from improper disposal of wastes on land. Major sources include industrial and household chemicals and garbage landfills, excessive fertilizers and pesticides used in agriculture, industrial waste lagoons, tailings and process wastewater from mines, industrial fracking, oil field brine pits, leaking underground oil storage tanks and pipelines, sewage sludge and septic systems. Additionally, groundwater is susceptible to saltwater intrusion in coastal areas and can cause land subsidence when extracted unsustainably, leading to sinking cities (like Bangkok)) and loss in elevation (such as the multiple meters lost in the Central Valley of California). These issues are made more complicated by sea level rise and other changes caused by climate changes which will affect the water cycle.changes which will affect the water cycle.)
Tragédie des communs + (In economics and in an ecological context, … In economics and in an ecological context, the tragedy of the commons is a situation in which individual users, who have open access to a resource unhampered by shared social structures or formal rules that govern access and use, act independently according to their own self-interest and, contrary to the common good of all users, cause depletion of the resource through their uncoordinated action in case there are too many users related to the available resources. Central element of the concept originated in an essay written in 1833 by the British economist William Forster Lloyd, who used a hypothetical example of the effects of unregulated grazing on common land, also known as "the commons" (in Anglo-Saxon law) in Great Britain and Ireland. In embryonic form the idea can also be found at Aristotle: "That which is common to the greatest number gets the least amount of care. Men pay most attention to what is their own: they care less for what is common." The theory became widely known as the "tragedy of the commons" after an essay with this title was published in Science written by Garrett Hardin in 1968. It became one of the most cited academic papers ever published and also one of the most heavily criticized, particularly by anthropologists and historians. Hardin, who wrote a total of 350 articles and 27 books, describes in this early essay that common use will only work reasonably satisfactorily as long as the number of man and beast stay well below the carrying capacity of the land. The availability of resources and the amount of people depending on it should therefor be kept in balance. As a punch-line in the article he writes that a freedom to breed is intolerable. As a result of discussions carried out in the decade after publication, Hardin in a talk in the early 80s suggested a better wording of the central idea: "Under conditions of overpopulation, freedom in an unmanaged commons brings ruin to all." In 1991, faced with evidence of historical and existing commons, Hardin retracted his original thesis and wrote "The Tragedy of the 'Unmanaged' Commons". Critical scholars note that although taken as a hypothetical example by Lloyd, the historical demise of the commons of Britain and Europe resulted not from misuse of long-held rights of usage by the commoners, but from the commons' owners enclosing and appropriating the land, abrogating the commoners' rights. Although open-access resource systems may collapse due to overuse (such as in overfishing), many examples have existed and still do exist where members of a community with regulated access to a common resource co-operate to exploit those resources prudently without collapse, or even creating "perfect order". Elinor Ostrom was awarded the 2009 Nobel Memorial Prize in Economic Sciences for demonstrating this concept in her book , which included examples of how local communities were able to do this without top-down regulations or privatization. On the other hand, Dieter Helm argues that these examples are context-specific and the tragedy of the commons "is not generally solved this way. If it were, the destruction of nature would not have occurred." In a modern global economic context, "commons" is taken to mean any open-access and unregulated resource such as the atmosphere, oceans, rivers, ocean fish stocks, or even an office refrigerator. In an anglo-saxon legal context the concept of the commons derive from a centuries old principle that not all land can be in private hands, but certain types of goods should only belong to the society. Here commons is a type of property that is neither private nor public, but rather held jointly by the members of a community in the interest of the community, who govern access and use through social structures, traditions, or formal rules. In environmental science, the "tragedy of the commons" is often cited in connection with sustainable development, meshing economic growth and environmental protection, as well as in the debate over global warming. It has also been used in analyzing behavior in the fields of economics, evolutionary psychology, anthropology, game theory, politics, taxation, and sociology.theory, politics, taxation, and sociology.)
Peuple autochtone + (Indigenous peoples are culturally distinct … Indigenous peoples are culturally distinct ethnic groups whose members are directly descended from the earliest known inhabitants of a particular geographic region and, to some extent, maintain the language and culture of those original peoples. The term Indigenous was first, in its modern context, used by Europeans, who used it to differentiate the Indigenous peoples of the Americas from the European settlers of the Americas and from the Africans who were brought to the Americas as enslaved people. The term may have first been used in this context by Sir Thomas Browne in 1646, who stated "and although in many parts thereof there be at present swarms of Negroes serving under the Spaniard, yet were they all transported from Africa, since the discovery of Columbus; and are not indigenous or proper natives of America." Peoples are usually described as "Indigenous" when they maintain traditions or other aspects of an early culture that is associated with the first inhabitants of a given region. Not all Indigenous peoples share this characteristic, as many have adopted substantial elements of a colonizing culture, such as dress, religion or language. Indigenous peoples may be settled in a given region (sedentary), exhibit a nomadic lifestyle across a large territory, or be resettled, but they are generally historically associated with a specific territory on which they depend. Indigenous societies are found in every inhabited climate zone and continent of the world except Antarctica. There are approximately five thousand Indigenous nations throughout the world. Indigenous peoples' homelands have historically been colonized by larger ethnic groups, who justified colonization with beliefs of racial and religious superiority, land use or economic opportunity. Thousands of Indigenous nations throughout the world are currently living in countries where they are not a majority ethnic group. Indigenous peoples continue to face threats to their sovereignty, economic well-being, languages, ways of knowing, and access to the resources on which their cultures depend. Indigenous rights have been set forth in international law by the United Nations, the International Labour Organization, and the World Bank. In 2007, the UN issued a Declaration on the Rights of Indigenous Peoples (UNDRIP) to guide member-state national policies to the collective rights of Indigenous peoples, including their rights to protect their cultures, identities, languages, ceremonies, and access to employment, health, education and natural resources. Estimates of the total global population of Indigenous peoples usually range from 250 million to 600 million. Official designations and terminology of who is considered Indigenous vary between countries. In settler states colonized by Europeans, such as in the Americas, Australia, New Zealand, and Oceania, Indigenous status is generally unproblematically applied to groups directly descended from the peoples who have lived there prior to European settlement. In Asia and Africa, where the majority of Indigenous peoples live, Indigenous population figures are less clear and may fluctuate dramatically as states tend to underreport the population of Indigenous peoples, or define them by different terminology., or define them by different terminology.)
Propriété intellectuelle + (Intellectual property (IP) is a category o … Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, copyrights, trademarks, and trade secrets. The modern concept of intellectual property developed in England in the 17th and 18th centuries. The term "intellectual property" began to be used in the 19th century, though it was not until the late 20th century that intellectual property became commonplace in the majority of the world's legal systems. The main purpose of intellectual property law is to encourage the creation of a wide variety of intellectual goods. To achieve this, the law gives people and businesses property rights to the information and intellectual goods they create, usually for a limited period of time. This gives economic incentive for their creation, because it allows people to benefit from the information and intellectual goods they create, and allows them to protect their ideas and prevent copying. These economic incentives are expected to stimulate innovation and contribute to the technological progress of countries, which depends on the extent of protection granted to innovators. The intangible nature of intellectual property presents difficulties when compared with traditional property like land or goods. Unlike traditional property, intellectual property is "indivisible", since an unlimited number of people can "consume" an intellectual good without its being depleted. Additionally, investments in intellectual goods suffer from problems of appropriation: Landowners can surround their land with a robust fence and hire armed guards to protect it, but producers of information or literature can usually do little to stop their first buyer from replicating it and selling it at a lower price. Balancing rights so that they are strong enough to encourage the creation of intellectual goods but not so strong that they prevent the goods' wide use is the primary focus of modern intellectual property law.focus of modern intellectual property law.)
Exploitation agricole intensive + (Intensive agriculture, also known as inten … Intensive agriculture, also known as intensive farming (as opposed to extensive farming), conventional, or industrial agriculture, is a type of agriculture, both of crop plants and of animals, with higher levels of input and output per unit of agricultural land area. It is characterized by a low fallow ratio, higher use of inputs such as capital and labour, and higher crop yields per unit land area. Most commercial agriculture is intensive in one or more ways. Forms that rely heavily on industrial methods are often called industrial agriculture, which is characterised by innovations designed to increase yield. Techniques include planting multiple crops per year, reducing the frequency of fallow years, and improving cultivars. It also involves increased use of fertilizers, plant growth regulators, pesticides, antibiotics for livestock and mechanised agriculture, controlled by increased and more detailed analysis of growing conditions, including weather, soil, water, weeds, and pests. Intensive farms are widespread in developed nations and increasingly prevalent worldwide. Most of the meat, dairy products, eggs, fruits, and vegetables available in supermarkets are produced by such farms. Some intensive farms can use sustainable methods, although this typically necessitates higher inputs of labor or lower yields. Sustainably increasing agricultural productivity, especially on smallholdings, is an important way of decreasing the amount of land needed for farming and slowing environmental degradation through processes like deforestation. Intensive animal farming involves large numbers of animals raised on limited land, for example by rotational grazing, or in the Western world sometimes as concentrated animal feeding operations. These methods increase the yields of food and fiber per acre as compared to extensive animal husbandry; concentrated feed is brought to seldom-moved animals, or with rotational grazing the animals are repeatedly moved to fresh forage.mals are repeatedly moved to fresh forage.)
Agriculture biologique + (La agricultura ecológica, orgánica o bioló … La agricultura ecológica, orgánica o biológica es un sistema de cultivo de una explotación agrícola autónoma basada en la utilización óptima de los recursos naturales, sin emplear productos químicos sintéticos, u organismos genéticamente modificados (OGMs) —ni para abono ni para combatir las plagas—ni para cultivos, logrando de esta forma obtener alimentos orgánicos a la vez que se conserva la fertilidad de la tierra y se respeta el medio ambiente. Todo ello de manera sostenible, equilibrada y mantenible. Los principales objetivos de la agricultura orgánica son la obtención de alimentos saludables, de mayor calidad nutritiva, sin la presencia de sustancias de síntesis química y obtenidos mediante procedimientos sostenibles. Este tipo de agricultura es un sistema global de gestión de la producción, que incrementa y realza la salud de los agrosistemas, inclusive la diversidad biológica, los ciclos biológicos y la actividad biológica del suelo. Esto se consigue aplicando, siempre que sea posible, métodos agronómicos, biológicos y mecánicos, en contraposición a la utilización de materiales sintéticos para desempeñar cualquier función específica del sistema. Esta forma de producción, además de contemplar el aspecto ecológico, incluye en su filosofía el mejoramiento de las condiciones de vida de sus practicantes, de tal forma que su objetivo se apega a lograr la sostenibilidad integral del sistema de producción agrícola; o sea, constituirse como un agrosistema social, ecológico y económicamente sostenible. La agricultura natural, la agricultura indígena, la agricultura familiar, la agricultura campesina, son tipos de agricultura natural que buscan el equilibrio con el ecosistema, son sistemas agrícolas sostenibles, que se han mantenido a lo largo del tiempo en distintas regiones del mundo buscando satisfacer la demanda de alimento natural y nutritivo a las personas y los animales, de manera que el agroecosistema mantenga el equilibrio.La agricultura biodinámica, y la permacultura, comparten algunos de sus principios y métodos, pero son más recientes. En esta práctica se puede tomar en cuenta los policultivos que a diferencia de los monocultivos provocan la erosión del suelo y evitan que se aprovechen los recursos del suelo. que se aprovechen los recursos del suelo.)
Logiciel open source + (La désignation open source /ˈoʊpən sɔɹs/, … La désignation open source /ˈoʊpən sɔɹs/, ou code source ouvert, s'applique aux logiciels (et s'étend maintenant aux œuvres de l'esprit) dont la licence respecte des critères précisément établis par l'Open Source Initiative, c'est-à-dire les possibilités de libre redistribution, d'accès au code source et de création de travaux dérivés. Mis à la disposition du grand public, ce code source est généralement le résultat d'une collaboration entre programmeurs. Le mouvement open source s'est développé en parallèle du mouvement du logiciel libre qui prône des valeurs philosophiques et politiques de justice, l'open source se focalisant sur des considérations techniques de développement logiciel et ne s'opposant pas à l'utilisation de systèmes intégrés combinant logiciels propriétaires et logiciels open source. Dans la pratique toutefois, la très grande majorité des logiciels open source sont également libres, l'exception la plus notable étant les logiciels pratiquant la tivoïsation. L’open source a déjà investi tous les grands domaines du système d’information des administrations françaises : environnements serveurs, domaines applicatifs, outils d’ingénierie, solutions de réseaux et sécurité. Les solutions open source sont désormais au même rang que les solutions propriétaires dans le paysage des logiciels du secteur public. Les décideurs effectuent d’ailleurs de plus en plus leur choix à partir d’un jugement éclairé, en comparant systématiquement solutions propriétaires et solutions libres.lutions propriétaires et solutions libres.)
Gestion de l'eau + (La gestión del agua o la gestión de recurs … La gestión del agua o la gestión de recursos hídricos es la actividad de planificar, desarrollar, distribuir y dirigir el uso óptimo de los recursos hídricos. Es un subconjunto de la . A veces se la denomina "gestión sostenible de recursos hídricos", pero es una redundancia, porque toda gestión óptima es necesariamente sostenible. El agua es esencial para la supervivencia de los seres vivos. La gestión del agua deberá continuar adaptándose a los cambios actuales y futuros en la existencia y asignación de estos recursos. Con la creciente incertidumbre por el calentamiento mundial y con los impactos a largo plazo de las acciones de gestión, la toma de decisiones será aún más difícil. Es probable que el calentamiento mundial lleve a situaciones aún no experimentadas. En consecuencia se buscan estrategias alternativas de gestión para evitar contratiempos en la asignación de recursos hídricos. Idealmente, la planificación de los recursos hídricos debe considerar todas las demandas de agua (sanitaria, agricultura, industria, medio ambiente), que compiten entre sí por un recurso escaso. La planificación busca repartir equitativamente el agua para satisfacer todas las demandas. Al igual que en otros casos de gestión de recursos, esto rara vez resulta posible en la práctica. Uno de las mayores preocupaciones sobre los recursos hídricos es la sostenibilidad de su asignación actual y futura. Cuando el agua deviene más escasa, crece enormemente la importancia de cómo se gestiona. Encontrar un equilibrio entre lo que necesitan las personas y lo que necesita el medio ambiente es un paso importante en la sostenibilidad de los recursos hídricos.a sostenibilidad de los recursos hídricos.)
Eaux souterraines + (Les eaux souterraines sont toutes les eaux … Les eaux souterraines sont toutes les eaux se trouvant sous la surface du sol, dans la zone de saturation et en contact direct avec le sol ou le sous-sol. En tant que ressource naturelle vitale et plus ou moins renouvelable et parfois transfrontalières, ces eaux posent des questions juridiques particulières. C'est parfois une source de conflit inter ethnique ou entre pays. Les aquifères souterrains sont la réserve majeure (98 à 99 %)de l'eau douce exploitable sur les terres émergées. L’utilisation de l’eau souterraine se répartit de façon variable d’un pays à l’autre. Les pourcentages d’utilisation, selon les trois catégories, sont les suivants : * 65 % (0 à 97 %) pour l’irrigation; * 25 % (0 à 93 %) pour l'eau potable; * 10 % (0 à 64 %) pour l'industrie. La carte des réserves aquifères connues en 2008 (publiée par l'UNESCO) montre 273 aquifères transfrontaliers (68 en Amérique, 38 en Afrique, 65 en Europe de l'Est, 90 en Europe occidentale et 12 en Asie où le recensement n'était pas terminé). Les aquifères majeurs connus en 2008 étaient en Amérique du Sud et Afrique du Nord. Les grands aquifères d'Afrique centrale sont encore mal explorés et rarement exploitées. La multiplication des pompes électriques et petits systèmes de pompage et forage a fortement augmenté la pression sur les nappes, souvent surexploitées dans les zones habitées et de grandes cultures et parfois déjà pollués. Leur exploitation pose aussi des questions sur nos responsabilités à l'égard des générations futures ou de l'amont vers l'aval (du point de vue du sens de circulation des masses d'eau souterraines, ou de leur alimentation via les bassins versants en surface le cas échéant). Il existe des eaux fossiles non renouvelables aux échelles humaines de temps et des aquifères profonds qui ne sont que très lentement réalimentés.ui ne sont que très lentement réalimentés.)
Magna carta + (Magna Carta Libertatum (Medieval Latin for … Magna Carta Libertatum (Medieval Latin for "Great Charter of Freedoms"), commonly called Magna Carta (also Magna Charta; "Great Charter"), is a royal charter of rights agreed to by King John of England at Runnymede, near Windsor, on 15 June 1215. First drafted by the Archbishop of Canterbury, Cardinal Stephen Langton, to make peace between the unpopular king and a group of rebel barons, it promised the protection of church rights, protection for the barons from illegal imprisonment, access to swift justice, and limitations on feudal payments to the Crown, to be implemented through a council of 25 barons. Neither side stood behind their commitments, and the charter was annulled by Pope Innocent III, leading to the First Barons' War. After John's death, the regency government of his young son, Henry III, reissued the document in 1216, stripped of some of its more radical content, in an unsuccessful bid to build political support for their cause. At the end of the war in 1217, it formed part of the peace treaty agreed at Lambeth, where the document acquired the name "Magna Carta", to distinguish it from the smaller Charter of the Forest which was issued at the same time. Short of funds, Henry reissued the charter again in 1225 in exchange for a grant of new taxes. His son, Edward I, repeated the exercise in 1297, this time confirming it as part of England's statute law. The charter became part of English political life and was typically renewed by each monarch in turn, although as time went by and the fledgling Parliament of England passed new laws, it lost some of its practical significance. At the end of the 16th century, there was an upsurge in interest in Magna Carta. Lawyers and historians at the time believed that there was an ancient English constitution, going back to the days of the Anglo-Saxons, that protected individual English freedoms. They argued that the Norman invasion of 1066 had overthrown these rights, and that Magna Carta had been a popular attempt to restore them, making the charter an essential foundation for the contemporary powers of Parliament and legal principles such as habeas corpus. Although this historical account was badly flawed, jurists such as Sir Edward Coke used Magna Carta extensively in the early 17th century, arguing against the divine right of kings. Both James I and his son Charles I attempted to suppress the discussion of Magna Carta. The political myth of Magna Carta and its protection of ancient personal liberties persisted after the Glorious Revolution of 1688 until well into the 19th century. It influenced the early American colonists in the Thirteen Colonies and the formation of the United States Constitution, which became the supreme law of the land in the new republic of the United States. Research by Victorian historians showed that the original 1215 charter had concerned the medieval relationship between the monarch and the barons, rather than the rights of ordinary people, but the charter remained a powerful, iconic document, even after almost all of its content was repealed from the statute books in the 19th and 20th centuries. Four clauses of the original 1215 charter (1 (part), 13, 39 and 40) remain in force in England and Wales (as clauses 1, 9 and 29 of the 1297 statute). Magna Carta still forms an important symbol of liberty today, often cited by politicians and campaigners, and is held in great respect by the British and American legal communities, Lord Denning describing it as "the greatest constitutional document of all times—the foundation of the freedom of the individual against the arbitrary authority of the despot". In the 21st century, four exemplifications of the original 1215 charter remain in existence, two at the British Library, one at Lincoln Castle and one at Salisbury Cathedral. There are also a handful of the subsequent charters in public and private ownership, including copies of the 1297 charter in both the United States and Australia. Although scholars refer to the 63 numbered "clauses" of Magna Carta, this is a modern system of numbering, introduced by Sir William Blackstone in 1759; the original charter formed a single, long unbroken text. The four original 1215 charters were displayed together at the British Library for one day, 3 February 2015, to mark the 800th anniversary of Magna Carta.mark the 800th anniversary of Magna Carta.)
Ressources naturelles + (Natural resources are resources that are d … Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land, all minerals along with all vegetation, and wildlife. Natural resources is a part of humanity's natural heritage or protected in nature reserves. Particular areas (such as the rainforest in Fatu-Hiva) often feature biodiversity and geodiversity in their ecosystems. Natural resources may be classified in different ways. Natural resources are materials and components (something that can be used) that can be found within the environment. Every man-made product is composed of natural resources (at its fundamental level). A natural resource may exist as a separate entity such as fresh water, air, as well as any living organism such as a fish, or it may be transformed by extractivist industries into an economically useful form that must be processed to obtain the resource such as metal ores, rare-earth elements, petroleum, timber and most forms of energy. Some resources are renewable resource, which means that they can be used at a certain rate and natural processes will restore them, whereas many extractive industries rely heavily on non-renewable resources that can only be extracted once. Natural-resource allocations can be at the center of many economic and political confrontations both within and between countries. This is particularly true during periods of increasing scarcity and shortages (depletion and overconsumption of resources). Resource extraction is also a major source of human rights violations and environmental damage. The Sustainable Development Goals and other international development agendas frequently focus on creating more sustainable resource extraction, with some scholars and researchers focused on creating economic models, such as circular economy, that rely less on resource extraction, and more on reuse, recycling and renewable resources that can be sustainably managed.resources that can be sustainably managed.)
Logiciel open source + (Open-source software (OSS) is computer sof … Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software. Open-source software development can bring in diverse perspectives beyond those of a single company. A 2008 report by the Standish Group stated that adoption of open-source software models has resulted in savings of about $60 billion per year for consumers. Open source code can be used for studying and allows capable end users to adapt software to their personal needs in a similar way user scripts and custom style sheets allow for web sites, and eventually publish the modification as a fork for users with similar preferences, and directly submit possible improvements as pull requests.it possible improvements as pull requests.)
Permaculture + (Permaculture is an approach to land manage … Permaculture is an approach to land management and settlement design that adopts arrangements observed in flourishing natural ecosystems. It includes a set of design principles derived using whole-systems thinking. It applies these principles in fields such as regenerative agriculture, town planning, rewilding, and community resilience. Permaculture originally came from "permanent agriculture", but was later adjusted to mean "permanent culture", incorporating social aspects. The term was coined in 1978 by Bill Mollison and David Holmgren, who formulated the concept in opposition to modern industrialized methods instead adopting a more traditional or "natural" approach to agriculture. Permaculture has many branches including ecological design, ecological engineering, regenerative design, environmental design, and construction. It also includes integrated water resources management, sustainable architecture, and regenerative and self-maintained habitat and agricultural systems modeled from natural ecosystems. Permaculture uses creative design processes based on whole-systems thinking, considering all materials and energies in flow that affect or are affected by proposed changes. In practical terms it means that before, for example, modifying overland water flow, one fully considers both upstream and downstream effects in the short and long terms. Or, when looking at a "problem", such as brushy vegetation, one considers how removing or altering it will affect soil and wildlife, and how these interacting forces would evolve over time and space. Permaculture has been criticised as being poorly defined and unscientific. Critics have pushed for less reliance on anecdote and extrapolation from ecological first principles, in favor of peer-reviewed research to substantiate productivity claims and to clarify methodology. Peter Harper from the Centre for Alternative Technology suggests that most of what passes for permaculture has no relevance to real problems.culture has no relevance to real problems.)
Pirate + (Piracy is an act of robbery or criminal vi … Piracy is an act of robbery or criminal violence by ship or boat-borne attackers upon another ship or a coastal area, typically with the goal of stealing cargo and other valuable goods. Those who conduct acts of piracy are called pirates, while the dedicated ships that pirates use are called pirate ships. The earliest documented instances of piracy were in the 14th century BC, when the Sea Peoples, a group of ocean raiders, attacked the ships of the Aegean and Mediterranean civilisations. Narrow channels which funnel shipping into predictable routes have long created opportunities for piracy, as well as for privateering and commerce raiding. Historic examples include the waters of Gibraltar, the Strait of Malacca, Madagascar, the Gulf of Aden, and the English Channel, whose geographic structures facilitated pirate attacks. Privateering uses similar methods to piracy, but the captain acts under orders of the state authorising the capture of merchant ships belonging to an enemy nation, making it a legitimate form of war-like activity by non-state actors. A land-based parallel is the ambushing of travelers by bandits and brigands in highways and mountain passes. While the term can include acts committed in the air, on land (especially across national borders or in connection with taking over and robbing a car or train), or in other major bodies of water or on a shore, in cyberspace, as well as the fictional possibility of space piracy, it generally refers to maritime piracy. It does not normally include crimes committed against people traveling on the same vessel as the perpetrator (e.g. one passenger stealing from others on the same vessel). Piracy or pirating is the name of a specific crime under customary international law and also the name of a number of crimes under the municipal law of a number of states. In the early 21st century, seaborne piracy against transport vessels remains a significant issue (with estimated worldwide losses of US$16 billion per year in 2004), particularly in the waters between the Red Sea and Indian Ocean, off the Somali coast, and also in the Strait of Malacca and Singapore. Currently, pirates armed with automatic weapons, such as assault rifles, and machine guns, grenades and rocket propelled grenades use small motorboats to attack and board ships, a tactic that takes advantage of the small number of crew members on modern cargo vessels and transport ships. They also use larger vessels, known as "mother ships", to supply the smaller motorboats. The international community is facing many challenges in bringing modern pirates to justice, as these attacks often occur in international waters. Some nations have used their naval forces to protect private ships from pirate attacks and to pursue pirates, and some private vessels use armed security guards, high-pressure water cannons, or sound cannons to repel boarders, and use radar to avoid potential threats. A romanticised version of piracy in the Age of Sail has long been a part of Western pop culture. Captain Charles Johnson's A General History of the Pyrates, published in London in 1724, contained biographies of several pirates of the "golden age" and brought them to public attention. Pirates of the era have been further popularised and stereotyped by many subsequent works of fiction, most notably by the novels Treasure Island (1883) and Peter Pan (1911), two film adaptions of Treasure Island (1934 and 1950) and, more recently, by the Pirates of the Caribbean film franchise, which began in 2003.bbean film franchise, which began in 2003.)
Tourisme + (Tourism is travel for pleasure or business … Tourism is travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours. The World Tourism Organization defines tourism more generally, in terms which go "beyond the common perception of tourism as being limited to holiday activity only", as people "travelling to and staying in places outside their usual environment for not more than one consecutive year for leisure and not less than 24 hours, business and other purposes". Tourism can be domestic (within the traveller's own country) or international, and international tourism has both incoming and outgoing implications on a country's balance of payments. Tourism numbers declined as a result of a strong economic slowdown (the late-2000s recession) between the second half of 2008 and the end of 2009, and in consequence of the outbreak of the 2009 H1N1 influenza virus, but slowly recovered until the COVID-19 pandemic put an abrupt end to the growth. The United Nations World Tourism Organization estimated that global international tourist arrivals might decrease by 58% to 78% in 2020, leading to a potential loss of US$0.9–1.2 trillion in international tourism receipts. Globally, international tourism receipts (the travel item in balance of payments) grew to US$1.03 trillion (€740 billion) in 2005, corresponding to an increase in real terms of 3.8% from 2010. International tourist arrivals surpassed the milestone of 1 billion tourists globally for the first time in 2012, emerging source markets such as China, Russia, and Brazil had significantly increased their spending over the previous decade. Global tourism accounts for c. 8% of global greenhouse-gas emissions. Emissions as well as other significant environmental and social impacts are not always beneficial to local communities and their economies. For this reason, many tourist development organizations have begun to focus on sustainable tourism to mitigate the negative effects caused by the growing impact of tourism. The United Nations World Tourism Organization emphasized these practices by promoting tourism as part of the Sustainable Development Goals, through programs like the International Year for Sustainable Tourism for Development in 2017, and programs like focusing on how SDG 8, SDG 12 and SDG 14 implicate tourism in creating a sustainable economy. Tourism has reached new dimensions with the emerging industry of space tourism as well as the current industry with cruise ships, there are many different ways of tourism. Another potential new tourism industry is virtual tourism.l new tourism industry is virtual tourism.)
Fiducie foncière communautaire + (Un Community Land Trust, appelé en droit f … Un Community Land Trust, appelé en droit français organisme foncier solidaire, est une personne morale à but non lucratif ayant pour objet de détenir la propriété de terrains sur lesquels des logements sont bâtis, et ce afin que ces derniers restent perpétuellement à coût abordable, et nettement inférieurs au prix du marché.et nettement inférieurs au prix du marché.)
Politiques publiques + (Une politique publique est un concept de s … Une politique publique est un concept de science politique qui désigne les « interventions d’une autorité investie de puissance publique et de légitimité gouvernementale sur un domaine spécifique de la société ou du territoire ». La sociologie politique utilise ce concept afin d'analyser l'ensemble de ces interventions dans les différentes étapes de leur mise en œuvre, aussi bien que dans leur genèse ou au travers de leurs conséquences (il est alors question de « sociologie de l’action publique »). La science administrative tend plutôt à analyser et à évaluer une politique publique en fonction de sa capacité à atteindre les objectifs qui lui ont été assignés, ainsi qu'en fonction de l'efficacité des moyens déployés. Dans ce cadre, les politiques publiques peuvent également être décrites comme « un ensemble d'actions coordonnées, réalisées par une puissance publique, dans l'optique d'obtenir une modification ou une évolution d'une situation donnée ». Étudier leur impact permet de décrire la capacité qu'a une puissance publique à gérer les attentes et les problèmes propres à la société ou au pan de société concerné(e) et à agir en fonction d'une stratégie publique, de court, moyen ou long terme. Les domaines concernés peuvent être de toute nature : infrastructure, santé, famille, logement, emploi, formation professionnelle, recherche, fonction publique, crise, déficit... L’évaluation des politiques publiques, présentée comme un nouvel outil d’aide à la décision publique, est apparue aux États-Unis dans les années 1960 avant de se développer au Royaume-Uni, dans les pays scandinaves puis dans les autres démocraties occidentales vingt ans plus tard. La Commission européenne en a fait notamment une exigence règlementaire systématique dans le cadre des financements alloués aux États membres à partir des années 1990.ux États membres à partir des années 1990.)

Accaparement des terres + (El Acaparamiento de Tierras es la expresió … El Acaparamiento de Tierras es la expresión en español para referirse al término en inglés Land Grabbing. El acaparamiento de tierras se refiere al nuevo ciclo mundial de apropiación de tierras que se inició en el año 2008 a partir de la crisis alimentaria que se desató durante ese año.alimentaria que se desató durante ese año.)

Ville + (A city is a large human settlement. It can … A city is a large human settlement. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organisations and businesses, sometimes benefiting different parties in the process, such as improving efficiency of goods and service distribution. Historically, city-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for global sustainability. Present-day cities usually form the core of larger metropolitan areas and urban areas—creating numerous commuters traveling towards city centres for employment, entertainment, and education. However, in a world of intensifying globalization, all cities are to varying degrees also connected globally beyond these regions. This increased influence means that cities also have significant influences on global issues, such as sustainable development, global warming, and global health. Because of these major influences on global issues, the international community has prioritized investment in sustainable cities through Sustainable Development Goal 11. Due to the efficiency of transportation and the smaller land consumption, dense cities hold the potential to have a smaller ecological footprint per inhabitant than more sparsely populated areas. Therefore, compact cities are often referred to as a crucial element of fighting climate change. However, this concentration can also have significant negative consequences, such as forming urban heat islands, concentrating pollution, and stressing water supplies and other resources. Other important traits of cities besides population include the capital status and relative continued occupation of the city. For example, country capitals such as Beijing, London, Mexico City, Moscow, Nairobi, New Delhi, Paris, Rome, Athens, Seoul, Singapore, Tokyo, Manila, and Washington, D.C. reflect the identity and apex of their respective nations. Some historic capitals, such as Kyoto and Xi'an, maintain their reflection of cultural identity even without modern capital status. Religious holy sites offer another example of capital status within a religion, Jerusalem, Mecca, Varanasi, Ayodhya, Haridwar and Prayagraj each hold significance.dwar and Prayagraj each hold significance.)
Community Land Trust + (A community land trust (CLT) is a nonprofi … A community land trust (CLT) is a nonprofit corporation that holds land on behalf of a place-based community, while serving as the long-term steward for affordable housing, community gardens, civic buildings, commercial spaces and other community assets on behalf of a community. CLTs balance the needs of individuals who want security of tenure in occupying and using land and housing, with the needs of the surrounding community, striving to secure a variety of social purposes such as maintaining the affordability of local housing, preventing the displacement of vulnerable residents, and promoting economic and racial inclusion. Across the world, there is enormous diversity among CLTs in the ways that real property is owned, used, and operated and the ways that the CLT itself is guided and governed by people living on and around a CLT’s land. people living on and around a CLT’s land.)
Fiducie foncière communautaire + (A community land trust (CLT) is a nonprofi … A community land trust (CLT) is a nonprofit corporation that holds land on behalf of a place-based community, while serving as the long-term steward for affordable housing, community gardens, civic buildings, commercial spaces and other community assets on behalf of a community. CLTs balance the needs of individuals who want security of tenure in occupying and using land and housing, with the needs of the surrounding community, striving to secure a variety of social purposes such as maintaining the affordability of local housing, preventing the displacement of vulnerable residents, and promoting economic and racial inclusion. Across the world, there is enormous diversity among CLTs in the ways that real property is owned, used, and operated and the ways that the CLT itself is guided and governed by people living on and around a CLT’s land. people living on and around a CLT’s land.)
Paysage + (A landscape is the visible features of an … A landscape is the visible features of an area of land, its landforms, and how they integrate with natural or man-made features, often considered in terms of their aesthetic appeal. A landscape includes the physical elements of geophysically defined landforms such as (ice-capped) mountains, hills, water bodies such as rivers, lakes, ponds and the sea, living elements of land cover including indigenous vegetation, human elements including different forms of land use, buildings, and structures, and transitory elements such as lighting and weather conditions. Combining both their physical origins and the cultural overlay of human presence, often created over millennia, landscapes reflect a living synthesis of people and place that is vital to local and national identity. The character of a landscape helps define the self-image of the people who inhabit it and a sense of place that differentiates one region from other regions. It is the dynamic backdrop to people's lives. Landscape can be as varied as farmland, a landscape park or wilderness. The Earth has a vast range of landscapes, including the icy landscapes of polar regions, mountainous landscapes, vast arid desert landscapes, islands, and coastal landscapes, densely forested or wooded landscapes including past boreal forests and tropical rainforests, and agricultural landscapes of temperate and tropical regions. The activity of modifying the visible features of an area of land is referred to as landscaping.rea of land is referred to as landscaping.)
Paysages + (A landscape is the visible features of an … A landscape is the visible features of an area of land, its landforms, and how they integrate with natural or man-made features, often considered in terms of their aesthetic appeal. A landscape includes the physical elements of geophysically defined landforms such as (ice-capped) mountains, hills, water bodies such as rivers, lakes, ponds and the sea, living elements of land cover including indigenous vegetation, human elements including different forms of land use, buildings, and structures, and transitory elements such as lighting and weather conditions. Combining both their physical origins and the cultural overlay of human presence, often created over millennia, landscapes reflect a living synthesis of people and place that is vital to local and national identity. The character of a landscape helps define the self-image of the people who inhabit it and a sense of place that differentiates one region from other regions. It is the dynamic backdrop to people's lives. Landscape can be as varied as farmland, a landscape park or wilderness. The Earth has a vast range of landscapes, including the icy landscapes of polar regions, mountainous landscapes, vast arid desert landscapes, islands, and coastal landscapes, densely forested or wooded landscapes including past boreal forests and tropical rainforests, and agricultural landscapes of temperate and tropical regions. The activity of modifying the visible features of an area of land is referred to as landscaping.rea of land is referred to as landscaping.)
Camp + (A refugee camp is a temporary settlement b … A refugee camp is a temporary settlement built to receive refugees and people in refugee-like situations. Refugee camps usually accommodate displaced people who have fled their home country, but camps are also made for internally displaced people. Usually, refugees seek asylum after they have escaped war in their home countries, but some camps also house environmental and economic migrants. Camps with over a hundred thousand people are common, but as of 2012, the average-sized camp housed around 11,400. They are usually built and run by a government, the United Nations, international organizations (such as the International Committee of the Red Cross), or non-governmental organization. Unofficial refugee camps, such as Idomeni in Greece or the Calais jungle in France, are where refugees are largely left without support of governments or international organizations. Refugee camps generally develop in an impromptu fashion with the aim of meeting basic human needs for only a short time. Facilities that make a camp look or feel more permanent are often prohibited by host country governments. If the return of refugees is prevented (often by civil war), a humanitarian crisis can result or continue. According to UNHCR, most refugees worldwide do not live in refugee camps. At the end of 2015, some 67% of refugees around the world lived in individual, private accommodations. This can be partly explained by the high number of Syrian refugees renting apartments in urban agglomerations across the Middle East. Worldwide, slightly over a quarter (25.4%) of refugees were reported to be living in managed camps. At the end of 2015, about 56% of the total refugee population in rural locations resided in a managed camp, compared to the 2% who resided in individual accommodation. In urban locations, the overwhelming majority (99%) of refugees lived in individual accommodations, compared with less than 1% who lived in a managed camp. A small percentage of refugees also live in collective centers, transit camps, and self-settled camps. Despite 74% of refugees being in urban areas, the service delivery model of international humanitarian aid agencies remains focused on the establishment and operation of refugee camps.ablishment and operation of refugee camps.)
Rue + (A street is a public thoroughfare in a bui … A street is a public thoroughfare in a built environment. It is a public parcel of land adjoining buildings in an urban context, on which people may freely assemble, interact, and move about. A street can be as simple as a level patch of dirt, but is more often paved with a hard, durable surface such as tarmac, concrete, cobblestone or brick. Portions may also be smoothed with asphalt, embedded with rails, or otherwise prepared to accommodate non-pedestrian traffic. Originally, the word street simply meant a paved road (Latin: via strata). The word street is still sometimes used informally as a synonym for road, for example in connection with the ancient Watling Street, but city residents and urban planners draw a crucial modern distinction: a road's main function is transportation, while streets facilitate public interaction. Examples of streets include pedestrian streets, alleys, and city-centre streets too crowded for road vehicles to pass. Conversely, highways and motorways are types of roads, but few would refer to them as streets.s, but few would refer to them as streets.)
Allotment Garden + (An allotment (British English), or in Nort … An allotment (British English), or in North America, a community garden, is a plot of land made available for individual, non-commercial gardening or growing food plants, so forming a kitchen garden away from the residence of the user. Such plots are formed by subdividing a piece of land into a few or up to several hundred parcels that are assigned to individuals or families. Such parcels are cultivated individually, contrary to other community garden types where the entire area is tended collectively by a group of people. In countries that do not use the term "allotment (garden)", a "community garden" may refer to individual small garden plots as well as to a single, large piece of land gardened collectively by a group of people. The term "victory garden" is also still sometimes used, especially when a community garden dates back to the First or Second World War. The individual size of a parcel typically suits the needs of a family, and often the plots include a shed for tools and shelter, and sometimes a hut for seasonal or weekend accommodation. The individual gardeners are usually organised in an allotment association, which leases or is granted the land from an owner who may be a public, private or ecclesiastical entity, and who usually stipulates that it be only used for gardening (i.e., growing vegetables, fruits and flowers), but not for permanent residential purposes (this is usually also required by zoning laws). The gardeners have to pay a small membership fee to the association, and have to abide by the corresponding constitution and by-laws. However, the membership entitles them to certain democratic rights.ntitles them to certain democratic rights.)
Climat + (Climate is the long-term weather pattern i … Climate is the long-term weather pattern in an area, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, including the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere and the interactions between them. The climate of a location is affected by its latitude/longitude, terrain, altitude, land use and nearby water bodies and their currents. Climates can be classified according to the average and typical variables, most commonly temperature and precipitation. The most widely used classification scheme was the Köppen climate classification. The Thornthwaite system, in use since 1948, incorporates evapotranspiration along with temperature and precipitation information and is used in studying biological diversity and how climate change affects it. Finally, the Bergeron and Spatial Synoptic Classification systems focus on the origin of air masses that define the climate of a region. Paleoclimatology is the study of ancient climates. Paleoclimatologists seek to explain climate variations for all parts of the Earth during any given geologic period, beginning with the time of the Earth's formation. Since very few direct observations of climate were available before the 19th century, paleoclimates are inferred from proxy variables. They include non-biotic evidence—such as sediments found in lake beds and ice cores—and biotic evidence—such as tree rings and coral. Climate models are mathematical models of past, present, and future climates. Climate change may occur over long and short timescales from various factors. Recent warming is discussed in global warming, which results in redistributions. For example, "a 3 °C [5 °F] change in mean annual temperature corresponds to a shift in isotherms of approximately 300–400 km [190–250 mi] in latitude (in the temperate zone) or 500 m [1,600 ft] in elevation. Therefore, species are expected to move upwards in elevation or towards the poles in latitude in response to shifting climate zones."de in response to shifting climate zones.")
Communaux + (Common land is land owned by a person or c … Common land is land owned by a person or collectively by a number of persons, over which other persons have certain common rights, such as to allow their livestock to graze upon it, to collect wood, or to cut turf for fuel. A person who has a right in, or over, common land jointly with another or others is usually called a commoner. In the New Forest, the New Forest Commoner is recognised as a minority cultural identity as well as an agricultural vocation, and members of this community are referred to as Commoners. In Great Britain, common land or former common land is usually referred to as a common; for instance, Clapham Common and Mungrisdale Common. Due to enclosure, the extent of common land is now much reduced from the millions of acres that existed until the 17th century, but a considerable amount of common land still exists, particularly in upland areas. There are over 8,000 registered commons in England alone.8,000 registered commons in England alone.)
Biens communaux + (Common land is land owned by a person or c … Common land is land owned by a person or collectively by a number of persons, over which other persons have certain common rights, such as to allow their livestock to graze upon it, to collect wood, or to cut turf for fuel. A person who has a right in, or over, common land jointly with another or others is usually called a commoner. In the New Forest, the New Forest Commoner is recognised as a minority cultural identity as well as an agricultural vocation, and members of this community are referred to as Commoners. In Great Britain, common land or former common land is usually referred to as a common; for instance, Clapham Common and Mungrisdale Common. Due to enclosure, the extent of common land is now much reduced from the millions of acres that existed until the 17th century, but a considerable amount of common land still exists, particularly in upland areas. There are over 8,000 registered commons in England alone.8,000 registered commons in England alone.)
Résilience communautaire + (Community resilience is the sustained abil … Community resilience is the sustained ability of a community to use available resources (energy, communication, transportation, food, etc.) to respond to, withstand, and recover from adverse situations (e.g. economic collapse to global catastrophic risks). This allows for the adaptation and growth of a community after disaster strikes. Communities that are resilient are able to minimize any disaster, making the return to normal life as effortless as possible. By implementing a community resilience plan, a community can come together and overcome any disaster, while rebuilding physically and economically. Due to its high complexity the discussion on resilient societies has increasingly been considered from an inter- and transdisciplinary scope. Around 2010 the French-speaking discourse coined the notion of collapsology (collapse science), discussing the resilience of societal systems and possible scenarios for societal transformations in the face of a variety of factors, such as dependence on fossil fuels, overpopulation, loss of biodiversity, and instability of the financial system. The controversial term was created by Pablo Servigne (an agricultural engineer) who, with Raphaël Stevens, wrote the book Comment tout peut s'effondrer (literally, "How everything can collapse"). Another, decidedly transdisciplinary approach which has been coined in late 2010s by German researcher Karim Fathi is the concept of "multiresilience" taking into account the fact that crises in the 21st century are interconnected, multi-dimensional and occurring on multiple system levels. Challenges such as the COVID-19 pandemic (individuals, organisations, societies alike) occur simultaneously, often even in interconnected and clustered forms. From a cross-disciplinary perspective, Karim Fathi outlines five systemic principles contributing to increased collective intelligence, responsiveness and creativity of societies in the face of multiple crises occurring simultaneously. Multiresilience is regarded as complementary to already established concepts for assessing and promoting societal resilience potentials. At the same time it criticises the fact that societal resilience has so far always been discussed from a mono-crisis persperctive. According to Karim Fathi, this onesided perspective" proves to be inadequate in terms of complexity, as societies in the 21st century have to deal with many global challenges - so-called „crisis-bundles“ - in the same time. Multiresilience aims to build up "basic robustness" in the sense of higher collective intelligence, which makes societies more capable of anticipating, reacting and solving problems in different crisis contexts.ing problems in different crisis contexts.)
Friends Group + (Cooperating Associations, also known as in … Cooperating Associations, also known as interpretive associations or natural history associations, support the interpretive, educational and scientific programs and services of governmental land management agencies such as the National Park Service, USDA Forest Service, US Fish and Wildlife Service, Bureau of Land Management, US Army Corps of Engineers, or state park departments. Associations assist in the production of site-specific products, distribute educational and scientific publications produced by agencies, donate materials for use in interpretive programs and exhibits, and work to secure grants and funding. This is accomplished through bookstore sales, membership support, publication and product development, research funding, and other educational programs and activities. They must hold a federally tax-exempt, not-for-profit status under Section 501(c)(3) of the Internal Revenue Code.on 501(c)(3) of the Internal Revenue Code.)
Wikidata 1 + (Earth is the third planet from the Sun and … Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, interacting to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes Earth's magnetosphere, deflecting destructive solar winds. Earth's atmosphere consists mostly of nitrogen and oxygen. More solar energy is received by tropical regions than polar regions and is redistributed by atmospheric and ocean circulation. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. A region's climate is governed by latitude, but also by elevation and proximity to moderating oceans. Severe weather, such as tropical cyclones, thunderstorms, and heatwaves, occurs in most areas and greatly impacts life. Earth is an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution. Earth rotates around its own axis in slightly less than a day (in about 23 hours and 56 minutes). is tilted with respect to the perpendicular to its orbital plane around the Sun, producing seasons. Earth is orbited by one permanent natural satellite, the Moon, which orbits Earth at 380,000 km (1.3 light seconds) and is roughly a quarter as wide as Earth. The Moon always faces the Earth with the same side through tidal locking and causes tides, stabilizes Earth's axis, and gradually slows its rotation. Earth formed over 4.5 billion years ago. During the first billion years of Earth's history, the ocean formed and then life developed within it. Life spread globally and began to affect Earth's atmosphere and surface, leading to Earth's Great Oxidation Event two billion years ago. Humans emerged 300,000 years ago, and have reached a population of almost 8 billion today. Humans depend on Earth's biosphere and natural resources for their survival, but have increasingly impacted Earth's environment. Today, humanity's impact on Earth's climate, soils, waters, and ecosystems is unsustainable, threatening people's lives and causing widespread extinction of other life.using widespread extinction of other life.)
Accaparement des terres +
Accès libre + (El acceso abierto (en inglés, Open access … El acceso abierto (en inglés, Open access (OA)) es el acceso inmediato, sin requerimientos de registro, suscripción o pago -es decir sin restricciones- a material digital educativo, académico, científico o de cualquier otro tipo, principalmente artículos de investigación científica de revistas especializadas y arbitradas mediante el sistema de revisión por pares o peer review.stema de revisión por pares o peer review.)
Paysages + (El concepto de paisaje (extensión de terre … El concepto de paisaje (extensión de terreno que se ve desde un lugar o sitio) se utiliza de manera diferente por varios campos de estudio, aunque todos los usos del término llevan implícita la existencia de un sujeto observador (el que visualiza) y de un objeto observado (el terreno), del que se destacan fundamentalmente sus cualidades visuales, espaciales. El paisaje, desde el punto de vista geográfico, es el objeto de estudio primordial y el documento geográfico básico a partir del cual se hace la geografía. En general, se entiende por paisaje cualquier área de la superficie terrestre producto de la interacción de los diferentes factores presentes en ella y que tienen un reflejo visual en el espacio. El paisaje geográfico es por tanto el aspecto que adquiere el espacio geográfico.El paisaje, desde el punto de vista artístico, sobre todo pictórico, es la representación gráfica de un terreno extenso. Con el mismo significado se utiliza el término país (no debe confundirse con el concepto político de país). El paisaje también puede ser el objeto material a crear o modificar por el arte mismo. En literatura, la descripción del paisaje es una que se denomina topografía (término que también da nombre a la topografía como ciencia y técnica que se emplea para la representación gráfica de la superficie terrestre). En construcciones literarias y ensayísticas es habitual comparar el paisaje con el paisanaje (de ), es decir, el medio con los grupos humanos. Véanse también: Ecología del paisaje, Paisaje sustentable, Área protegida y Paisaje sonoro.ntable, Área protegida y Paisaje sonoro.)
Squat + (El movimiento okupa es un movimiento socia … El movimiento okupa es un movimiento social radical que propugna la ocupación de viviendas o locales deshabitados, temporal o permanentemente, con el fin de utilizarlos como vivienda, guarida, tierras de cultivo, lugar de reunión o centros con fines sociales, políticos y culturales, entre otros. El principal motivo es denunciar y al mismo tiempo responder a las dificultades económicas que los activistas consideran que existen para hacer efectivo, a costa del derecho a la propiedad privada, el derecho a la vivienda. El movimiento okupa agrupa gran variedad de ideologías —en ocasiones asociadas a una determinada tribu urbana— que suelen justificar sus acciones como un gesto de protesta política y social contra la especulación y para defender el derecho a la vivienda frente a las dificultades económicas o sociales. El movimiento okupa también suele defender el aprovechamiento de solares, inmuebles y espacios abandonados y su uso público como centros sociales o culturales. La legislación relativa a okupación de espacios varía mucho de un país a otro. En la mayoría de países, los propietarios legales del bien inmueble cuyos bienes resultan usurpados pueden denunciarla como un delito ordinario; mientras que existen países donde puede haber una legislación que tolere condicionadamente la okupación, o donde existen concesiones temporales por parte de los propietarios a cambio del mantenimiento o alquiler del inmueble. En Holanda, por ejemplo, sólo recientemente se ha propuesto castigar esta práctica.te se ha propuesto castigar esta práctica.)
Patrimoine culturel + (El patrimonio cultural es la herencia cult … El patrimonio cultural es la herencia cultural propia del pasado de una comunidad, mantenida hasta la actualidad y transmitida a las generaciones presentes. Las entidades que identifican y clasifican determinados bienes como relevantes para la cultura de un pueblo, de una región o de toda la humanidad, velan también por la salvaguarda y la protección de esos bienes, de forma tal que sean preservados debidamente para las generaciones futuras y que puedan ser objeto de estudio y fuente de experiencias emocionales para todos aquellos que los usen, disfruten o visiten. La Convención sobre la Protección del Patrimonio Mundial Cultural y Natural fue adoptada por la Conferencia General de la Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura (Unesco) el 16 de noviembre de 1972, cuyo objetivo era promover la identificación, protección y preservación del patrimonio cultural y natural considerado especialmente valioso para la humanidad. Como complemento de ese tratado, la Unesco aprobó, el 7 de octubre de 2003, la Convención para la Salvaguarda del Patrimonio Cultural Inmaterial, que definió que: Se entiende por patrimonio cultural inmaterial los usos, representaciones, expresiones, conocimientos y técnicas —junto con los instrumentos, objetos, artefactos y espacios culturales que les son inherentes— que las comunidades, los grupos y, en algunos casos, los individuos reconozcan como parte integrante de su patrimonio cultural.Este patrimonio cultural inmaterial, que se transmite de generación en generación, es recreado constantemente por las comunidades y grupos en función de su entorno, su interacción con la naturaleza y su historia, infundiéndoles un sentimiento de identidad y continuidad y contribuyendo así a promover el respeto de la diversidad cultural y la creatividad humana. Algunos patrimonialistas y museólogos que estudian los vínculos culturales con la naturaleza o el patrimonio natural han alertado sobre las consecuencias concretas de las alteraciones ambientales tanto en la música folklórica como en la producción de artesanías tradicionales y en la supervivencia de las deidades, mitos y leyendas populares. Sostienen que la destrucción de la naturaleza desdibuja la identidad de los pueblos. En particular, los de aquellos que mejor han conservado sus tradiciones o cosmovisiones, como suele ser el caso de los indígenas u aborígenes.ser el caso de los indígenas u aborígenes.)
Plateforme + (En informática, plataforma (a veces tambié … En informática, plataforma (a veces también denominada plataforma digital o plataforma informática o plataforma computacional) es un sistema que sirve como base para hacer funcionar determinados módulos de hardware o de software con los que es compatible. Dicho sistema está definido por un estándar alrededor del cual se determina una y una plataforma de software (incluyendo ). Al definir plataformas se establecen los tipos compatibles de arquitectura, sistema operativo, lenguaje de programación o interfaz de usuario. Ejemplos de plataformas son IBM-PC, que incluye las arquitecturas I386 (x86), IA64 o AMD64 (x86-64); Macintosh, que incluye la arquitectura Gecko y PowerPC; y SPARC. Existen programas multiplataforma que permiten ejecutarse en diversas plataformas. También existen emuladores, que son programas que permiten ejecutar desde una plataforma programas de otra emulando su funcionamiento, como por ejemplo UAE, que emula el hardware VICE, un emulador de los legendarios Commodore de mitad de los 80..egendarios Commodore de mitad de los 80..)
Enclosure + (Enclosure ou inclosure est un terme anglai … Enclosure ou inclosure est un terme anglais qui désigne l'action d'enclore un champ. Cet anglicisme est passé en français où il désigne la parcelle de terrain enclose de haies, de murs ou de barrières, bien que les Picards utilisaient plutôt le mot « renclôture ». Ce terme fait souvent référence au mouvement des enclosures qui s'est développé en Angleterre à partir du XVIe siècle, et qui s'est intensifié aux débuts de la révolution industrielle au XIXe siècle.la révolution industrielle au XIXe siècle.)
Passage à l'échelle + (Es un anglicismo que describe la capacidad … Es un anglicismo que describe la capacidad de un negocio o sistema de crecer en magnitud. Aunque la palabra escalabilidad no existe en el diccionario de la RAE el adjetivo más cercano ampliable es de poco uso en telecomunicaciones y en ingeniería informática. La escalabilidad, término tomado en préstamo del idioma inglés, es la propiedad deseable de un sistema, una red o un proceso, que indica su habilidad para reaccionar y adaptarse sin perder calidad, o bien manejar el crecimiento continuo de trabajo de manera fluida, o bien para estar preparado para hacerse más grande sin perder calidad en los servicios ofrecidos. En general, también se podría definir como la capacidad del sistema informático de cambiar su tamaño o configuración para adaptarse a las circunstancias cambiantes. Por ejemplo, una Universidad que establece una red de usuarios por Internet para un edificio de docentes y no solamente quiere que su sistema informático tenga capacidad para acoger a los actuales clientes que son todos profesores, sino también a los clientes que pueda tener en el futuro dado que hay profesores visitantes que requieren de la red por algunas aplicaciones académicas, para esto es necesario implementar soluciones que permitan el crecimiento de la red sin que la posibilidad de su uso y reutilización disminuya o que pueda cambiar su configuración si es necesario. La escalabilidad como propiedad de los sistemas es generalmente difícil de definir, en particular es necesario definir los requisitos específicos para la escalabilidad en esas dimensiones donde se crea que son importantes. Es una edición altamente significativa en sistemas electrónicos, bases de datos, ruteadores y redes. A un sistema cuyo rendimiento es mejorado después de haberle añadido más capacidad hardware, proporcionalmente a la capacidad añadida, se dice que pasa a ser un sistema escalable. dice que pasa a ser un sistema escalable.)
Eau et irrigation + (Irrigation is the agricultural process of … Irrigation is the agricultural process of applying controlled amounts of water to land to assist in the production of crops, as well as to grow landscape plants and lawns, where it may be known as watering. Agriculture that does not use irrigation but instead relies only on direct rainfall is referred to as rain-fed. Irrigation has been a central feature of agriculture for over 5,000 years and has been developed independently by many cultures across the globe. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation. Irrigation systems are also used for cooling livestock, dust suppression, disposal of sewage, and in mining. Irrigation is often studied together with drainage, which is the removal of surface and sub-surface water from a given location. There are various types of irrigation. Micro-irrigation uses less pressure and water flow than overhead irrigation. Drip irrigation trickles out at the root zone. irrigation trickles out at the root zone.)
Wikidata 1 + (La Terra è il terzo pianeta in ordine di d … La Terra è il terzo pianeta in ordine di distanza dal Sole e il più grande dei pianeti terrestri del sistema solare, sia per massa sia per diametro. Sulla sua superficie, si trova acqua in tutti e tre gli stati di aggregazione (solido, liquido e gassoso) e un'atmosfera composta in prevalenza da azoto e ossigeno che, insieme al campo magnetico che avvolge il pianeta, protegge la Terra dai raggi cosmici e dalle radiazioni solari. Essendo l'unico corpo planetario del sistema solare adatto a sostenere la vita come concepita e conosciuta dagli esseri umani, è l'unico luogo nel quale vivono tutte le specie viventi conosciute. Dopo l'impresa di Jurij Gagarin è conosciuta con l'epiteto di "pianeta azzurro", che deriva dalle parole che il primo uomo a poterla guardare dallo spazio ha pronunciato mentre l'osservava. La sua formazione è datata a circa 4,54 miliardi di anni fa. La Terra possiede un satellite naturale chiamato Luna la cui età, stimata analizzando alcuni campioni delle rocce più antiche, è risultata compresa tra 4,29 e 4,56 miliardi di anni. L'asse di rotazione terrestre è inclinato rispetto alla perpendicolare al piano dell'eclittica: questa inclinazione combinata con la rivoluzione della Terra intorno al Sole causa l'alternarsi delle stagioni. Le condizioni atmosferiche primordiali sono state alterate in maniera preponderante dalla presenza di forme di vita che hanno creato un diverso equilibrio ecologico plasmando la superficie del pianeta. Circa il 71% della superficie è coperta da oceani di acqua salata e il restante 29% è rappresentato dai continenti e dalle isole. La superficie esterna è suddivisa in diversi segmenti rigidi detti placche tettoniche che si spostano lungo la superficie in periodi di diversi milioni di anni. La parte interna, attiva dal punto di vista geologico, è composta da uno spesso strato relativamente solido o plastico, denominato mantello, e da un nucleo diviso a sua volta in nucleo esterno, dove si genera il campo magnetico, e nucleo interno solido, costituito principalmente da ferro e nichel. Tutto ciò che riguarda la composizione della parte interna della Terra resta comunque una teoria indiretta ovvero mancante di verifica e osservazione diretta. Importanti sono le influenze esercitate sulla Terra dallo spazio esterno. Infatti la Luna è all'origine del fenomeno delle maree, stabilizza lo spostamento dell'asse terrestre e ha lentamente modificato la lunghezza del periodo di rotazione del pianeta rallentandolo; un bombardamento di comete durante le fasi primordiali ha giocato un ruolo fondamentale nella formazione degli oceani e in un periodo successivo alcuni impatti di asteroidi hanno provocato significativi cambiamenti delle caratteristiche della superficie e ne hanno alterato la vita presente. Il simbolo astronomico della Terra è un cerchio con all'interno una croce e occasionalmente anche : la linea orizzontale rappresenta l'equatore e quella verticale un meridiano.'equatore e quella verticale un meridiano.)
Wikidata 1 + (La Tierra (del latín Terra, deidad romana … La Tierra (del latín Terra, deidad romana equivalente a Gea, diosa griega de la feminidad y la fecundidad) es un planeta del sistema solar que gira alrededor de su estrella —el Sol— en la tercera órbita más interna. Es el más denso y el quinto mayor de los ocho planetas del sistema solar. También es el mayor de los cuatro terrestres o rocosos. La Tierra se formó hace aproximadamente 4550 millones de años y la vida surgió unos mil millones de años después. Es el hogar de millones de especies, incluidos los seres humanos y actualmente el único cuerpo astronómico donde se conoce la existencia de vida. La atmósfera y otras condiciones abióticas han sido alteradas significativamente por la biosfera del planeta, favoreciendo la proliferación de organismos aerobios, así como la formación de una capa de ozono que junto con el campo magnético terrestre bloquean la radiación solar dañina, permitiendo así la vida en la Tierra. Las propiedades físicas de la Tierra, la historia geológica y su órbita han permitido que la vida siga existiendo. Se estima que el planeta seguirá siendo capaz de sustentar vida durante otros 500 millones de años, ya que según las previsiones actuales, pasado ese tiempo la creciente luminosidad del Sol terminará causando la extinción de la biosfera. La superficie terrestre o corteza está dividida en varias placas tectónicas que se deslizan sobre el magma durante periodos de varios millones de años. La superficie está cubierta por continentes e islas; estos poseen varios lagos, ríos y otras fuentes de agua, que junto con los océanos de agua salada que representan cerca del 71 % de la superficie constituyen la hidrósfera. No se conoce ningún otro planeta con este equilibrio de agua líquida, que es indispensable para cualquier tipo de vida conocida. Los polos de la Tierra están cubiertos en su mayoría de hielo sólido (indlandsis de la Antártida) o de banquisas (casquete polar ártico). El interior del planeta es geológicamente activo, con una gruesa capa de manto relativamente sólido, un núcleo externo líquido que genera un campo magnético, y un sólido núcleo interior compuesto por aproximadamente un 88 % de hierro. La Tierra interactúa gravitatoriamente con otros objetos en el espacio, especialmente el Sol y la Luna. En la actualidad, la Tierra completa una órbita alrededor del Sol cada vez que realiza 366,26 giros sobre su eje, lo cual es equivalente a 365,26 días solares o un año sideral. El eje de rotación de la Tierra se encuentra inclinado 23,4° con respecto a la perpendicular a su plano orbital, lo que produce las variaciones estacionales en la superficie del planeta con un período de un año tropical (365,24 días solares). La Tierra posee un único satélite natural, la Luna, que comenzó a orbitar la Tierra hace 4530 millones de años; esta produce las mareas, estabiliza la inclinación del eje terrestre y reduce gradualmente la velocidad de rotación del planeta. Hace aproximadamente 3800 a 4100 millones de años, durante el llamado bombardeo intenso tardío, numerosos asteroides impactaron en la Tierra, causando significativos cambios en la mayor parte de su superficie. Tanto los minerales del planeta como los productos de la biosfera aportan recursos que se utilizan para sostener a la población humana mundial. Sus habitantes están agrupados en unos 200 estados soberanos independientes, que interactúan a través de la diplomacia, los viajes, el comercio y la acción militar. Las culturas humanas han desarrollado muchas ideas sobre el planeta, incluida la personificación de una deidad, la creencia en una Tierra plana o en la Tierra como centro del universo, y una perspectiva moderna del mundo como un entorno integrado que requiere administración.rno integrado que requiere administración.)