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  2. Lists of environmental topics - Wikipedia

    en.wikipedia.org/wiki/Lists_of_environmental_topics

    The natural environment, commonly referred to simply as the environment, is all living and non-living things that occur naturally on Earth or some part of it (e.g. the natural environment in a country).

  3. Environmental impacts of animal agriculture - Wikipedia

    en.wikipedia.org/wiki/Environmental_impacts_of...

    Moreover, the efficiency of meat production varies depending on the specific production system, as well as the type of feed. It may require anywhere from 0.9 and 7.9 kilograms of grain to produce 1 kilogram of beef, between 0.1 to 4.3 kilograms of grain to produce 1 kilogram of pork, and 0 to 3.5 kilograms of grains to produce 1 kilogram of ...

  4. Environmental impact of agriculture - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    The environmental impact of agriculture is the effect that different farming practices have on the ecosystems around them, and how those effects can be traced back to those practices. [1] The environmental impact of agriculture varies widely based on practices employed by farmers and by the scale of practice.

  5. Environmental issues - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues

    [39] [40] The environmental degradation process amplifies the impact of environmental issues which leave lasting impacts on the environment. [41] Environmental degradation is one of the ten threats officially cautioned by the High-level Panel on Threats, Challenges and Change of the United Nations.

  6. Human impact on the environment - Wikipedia

    en.wikipedia.org/.../Human_impact_on_the_environment

    Modifying the environment to fit the needs of society (as in the built environment) is causing severe effects [3] [4] including global warming, [1] [5] [6] environmental degradation [1] (such as ocean acidification [1] [7]), mass extinction and biodiversity loss, [8] [9] [10] ecological crisis, and ecological collapse.

  7. List of environmental issues - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental_issues

    Environmental issues are harmful aspects of human activity on the biophysical environment. This alphabetical list is loosely divided into causes, effects and mitigation, noting that effects are interconnected and can cause new effects.

  8. Wildlife conservation - Wikipedia

    en.wikipedia.org/wiki/Wildlife_conservation

    This trade can be devastating to both humans and animals. It has the capacity to spread zoonotic diseases to humans, as well as contribute to local extinction. The pathogens to humans may be spread through small animal vectors like ticks, or through ingestion of food and water.

  9. Environment of the United States - Wikipedia

    en.wikipedia.org/wiki/Environment_of_the_United...

    The term "conservation" appeared in 1908 and was gradually replaced by "environmentalism" in the 1970s as the focus shifted from managing and protecting natural resources to a broader concern for the environment as a whole and the negative impact of poor air or water on humans. For recent history see Environmental policy of the United States.