Environmental history of the United States

The Environmental history of the United States covers the history of the environment over the centuries to the late 20th century, plus the political and expert debates on conservation and environmental issues.^[1] 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.