Impact environnemental

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Définition(s)

Définitions générales

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L'impact environnemental désigne l'ensemble des modifications qualitatives, quantitatives et fonctionnelles de l'environnement (négatives ou positives) engendrées par un projet, un processus, un procédé, un ou des organismes et un ou des produits, de sa conception à sa "fin de vie".L'étude de l'impact environnemental est un outil utilisé par la norme ISO 14001 et pour faire une analyse du cycle de vie.Des études d'impacts environnementales sur les milieux biophysique et humain sont requises pour une majorité de projets. Elles sont nécessaires et obligatoires pour les projets d'envergures et sont habituellement assorties de mesures d'atténuation et/ou de mitigation et/ou de mise en valeur et/ou de formules compensatoires et/ou de mesures de conservation ou de restauration.

Source : http://fr.dbpedia.org/resource/Impact_environnemental

Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. As indicated by the I=PAT equation, environmental impact (I) or degradation is caused by the combination of an already very large and increasing human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource-depleting and polluting technology (T). Environmental degradation is one of the ten threats officially cautioned by the High-level Panel on Threats, Challenges and Change of the United Nations. The United Nations International Strategy for Disaster Reduction defines environmental degradation as "the reduction of the capacity of the environment to meet social and ecological objectives, and needs". Environmental degradation comes in many types. When natural habitats are destroyed or natural resources are depleted, the environment is degraded. Efforts to counteract this problem include environmental protection and environmental resources management. There are many examples of environmental degradation throughout the world. A recent example is the 2019 Amazon rainforest wildfires. The Amazon makes up 60% of all rainforests. It is the earth's lungs and with it getting destroyed is posing a huge threat to the environment and the whole world. The effects of the deforestation will pose major impacts on the world around us. The constant cutting down of trees is getting rid of our oxygen supply as well as the absorption of co2. With the continuation of deforestation we will have less available oxygen in the world which could have detrimental effects on human health. An alternate issue that results from this is the overconsumption and waste of the paper products that come from those trees. The waste it typically produces does not get recycled, therefore, immense amount of waste is created. An additional harmful result from this is the degradation of the soil. The constant deforestation causes the soil to become less nutrient which will make it harder to be used again.

Source : http://dbpedia.org/resource/Environmental_degradation


Q2022868 Environmental_degradation Impact_environnemental



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