Changes

Both Conservationism and Environmentalism arrived in politics during the [[Progressive Era]]

Both Conservationism and Environmentalism arrived in politics during the [[Progressive Era]]

In the early 20th century there were three main positions. The '''laissez-faire''' position held that owners of private property--including lumber and mining companies, should be allowed to do anything they wished for their property.  

In the early 20th century there were three main positions. The '''laissez-faire''' position held that owners of private property—including lumber and mining companies, should be allowed to do anything they wished for their property.  

[[File:TR-Conservation.jpg|thumb|370px|Roosevelt was a leader in Conservation, fighting to end the waste of natural resources]]

[[File:TR-Conservation.jpg|thumb|370px|Roosevelt was a leader in Conservation, fighting to end the waste of natural resources]]

* Short, C. Brant. ''Ronald Reagan and the Public Lands: America's Conservation Debate'' (1989).

* Short, C. Brant. ''Ronald Reagan and the Public Lands: America's Conservation Debate'' (1989).

* Strong, Douglas H.  ''Dreamers & Defenders: American Conservationists.'' (1988) [http://www.questia.com/PM.qst?a=o&d=8516594 online edition], good biographical studies of the major leaders

* Strong, Douglas H.  ''Dreamers & Defenders: American Conservationists.'' (1988) [http://www.questia.com/PM.qst?a=o&d=8516594 online edition], good biographical studies of the major leaders

* Turner, James Morton, "The Specter of Environmentalism": Wilderness, Environmental Politics, and the Evolution of the New Right. ''The Journal of American History'' 96.1 (2009): 123-47[http://www.historycooperative.org/journals/jah/96.1/turner.html online at [[History Cooperative]]]

* Turner, James Morton, "The Specter of Environmentalism": Wilderness, Environmental Politics, and the Evolution of the New Right. ''The Journal of American History'' 96.1 (2009): 123-47 [http://www.historycooperative.org/journals/jah/96.1/turner.html online at [[History Cooperative]]]

* Van Liere, Kent D., and Riley E. Dunlap. "The Social Bases of Environmental Concern: A Review of Hypotheses, Explanations and Empirical Evidence," ''Public Opinion Quarterly'' 44:181-197 (1980)

* Van Liere, Kent D., and Riley E. Dunlap. "The Social Bases of Environmental Concern: A Review of Hypotheses, Explanations and Empirical Evidence," ''Public Opinion Quarterly'' 44:181-197 (1980)