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Habitat degradation is caused by the depletion of resources, in which human activities are the primary driving force. [48] [49] One major impact that the depletion of fish stocks causes is a dynamic change and erosion to marine food webs, which can ultimately lead to ecosystem collapse because of the imbalance created for other marine species.
One major component of environmental degradation is the depletion of the resource of fresh water on Earth. [23] Approximately only 2.5% of all of the water on Earth is fresh water , with the rest being salt water . 69% of fresh water is frozen in ice caps located on Antarctica and Greenland , so only 30% of the 2.5% of fresh water is available ...
Animals used for resources can be directly hunted, while destruction of environments, such as through harvesting timber, can also cause extinctions. Forced migration; Soil erosion; Oil depletion [18] Ozone depletion; Greenhouse gas increase; Water gasification; Natural hazard/Natural disaster; Metals and minerals depletion.
Environmental degradation is the deterioration of the environment through depletion of resources such as quality of 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.
This is an alphabetical list of environmental issues, harmful aspects of human activity on the biophysical environment. They are loosely divided into causes, effects and mitigation, noting that effects are interconnected and can cause new effects.
The major proximate drivers are biophysical factors and unsustainable land management practices, while the underlying drivers are social, economic, and institutional factors. [1] Land degradation is a global problem largely related to the agricultural sector, general deforestation and climate change. Causes include:
The main causes of ozone depletion and the ozone hole are manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam-blowing agents (chlorofluorocarbons (CFCs), HCFCs, halons), referred to as ozone-depleting substances (ODS). [174]
Ethiopia, the third largest country in Africa by population, has been hit by famine many times because of shortages of rain and depletion of natural resources. Deforestation has lowered the chance of getting rain, which is already low, and increased erosion. Berkeley Bayisa, an Ethiopian farmer, offers one example of why deforestation occurs.