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By the early 20th century, the federal government held significant portions of most western states that had simply not been claimed for any use. Conservationists prevailed upon President Theodore Roosevelt to set aside lands for forest conservation and for special scientific or natural history interest. Much land still remained unclaimed even ...
Both conservationists and preservationists appeared in political debates during the Progressive Era (the 1890s–early 1920s). There were three main positions. There were three main positions. Laissez-faire: The laissez-faire position held that owners of private property, including lumber and mining companies, should be allowed to do anything ...
This timeline of the history of environmentalism is a listing of events that have shaped humanity's perspective on the environment. This timeline includes human induced disasters, environmentalists that have had a positive influence, and environmental legislation .
John Muir was one of the founding fathers of the preservation movement in the United States in the late 19th century. He believed that nature had intrinsic value and viewed nature as a sacred religious temple, which opposed the view of many utilitarian conservationists. One of Muir’s first endeavors was helping create Yosemite National Park.
1920, British Museum Research Laboratory established under the direction of Alexander Scott as a direct response to the poor state of the museum's collections. 1920s, George T. Oliver of Oliver Brothers Fine Art Restoration, Boston [2] has invented world's first vacuum table for re-lining
Environmental health movement dating at least to Progressive Era (the 1890s - 1920s) urban reforms including clean water supply, more efficient removal of raw sewage and reduction in crowded and unsanitary living conditions. Today Environmental health is more related to nutrition, preventive medicine, ageing well and other concerns specific to ...
1920s. 1927; 1940s. 1948; 1950s. 1954; 1960s 1962 - ... Timeline of environmental history; Timeline of the history of environmentalism This page was last ...
By the early 1920s, Leopold had concluded that a particular kind of preservation should be embraced in the national forests of the American West. He was prompted to this by the rampant building of roads to accommodate the "proliferation of the automobile" and the related increasingly heavy recreational demands placed on public lands.