index of environmental articles
The natural environment, commonly referred to simply as the environment, includes all living and non-living things occurring naturally on Earth.
The natural environment includes complete ecological units that function as natural systems without massive human intervention, including all vegetation, animals, microorganisms, soil, rocks, atmosphere and natural phenomena that occur within their boundaries. Also part of the natural environment is universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water, and climate.

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See also
Outline of environmentalism
Environmentalism
List of environmental issues
Index of climate change articles
Index of conservation articles
List of environmental issues
Outline of environmental studies
Environmental studies
Index of pesticide articles