In the colonial era, access to natural resources was allocated by individual towns, and disputes over fisheries or land use were resolved at the local level.
Changing technologies, however, strained traditional ways of resolving disputes of resource use, and local governments had limited control over powerful special interests.
In New England, many farmers became uneasy as they noticed clearing of the forest changed stream flows and a decrease in bird population which helped control insects and other pests.
[9] Theodore Roosevelt and his close ally George Bird Grinnell, were motivated by the wanton waste that was taking place at the hand of market hunting.
The Boone and Crockett Club's contingency of conservationists, scientists, politicians, and intellectuals became Roosevelt's closest advisers during his march to preserve wildlife and habitat across North America.
"[13] Muir and the Sierra Club vehemently opposed the damming of the Hetch Hetchy Valley in Yosemite in order to provide water to the city of San Francisco.
He used numerous programs of the departments of Agriculture and Interior[15] to end wasteful land-use, mitigate the effects of the Dust Bowl, and efficiently develop natural resources in the West.
We hold the commonwealth in trust for prosperity, and to lessen or destroy it is to commit treason against the future"[18] During the 1950s, 1960s and 1970s, several events occurred which raised the public awareness of harm to the environment caused by man.
By 1969, the public reaction to an ecologically catastrophic oil spill from an offshore well in California's Santa Barbara Channel, Barry Commoner's protest against nuclear testing, along with Rachel Carson's 1962 book Silent Spring,[19] and Paul R. Ehrlich's The Population Bomb (1968)[20] all added anxiety about the environment.
[23] Several books after the middle of the 20th century contributed to the rise of American environmentalism (as distinct from the longer-established conservation movement), especially among college and university students and the more literate public.
in addition to opposing environmental degradation and protecting wilderness, an increased focus on coexisting with natural biodiversity has appeared, a strain that is apparent in the movement for sustainable agriculture and in the concept of Reconciliation Ecology.
[26] In the modern wilderness preservation movement, important philosophical roles are played by the writings of John Muir who had been activist in the late 19th and early 20th century.
Also important was forester and ecologist Aldo Leopold, one of the founders of the Wilderness Society in 1935, who wrote a classic of nature observation and ethical philosophy, A Sand County Almanac, (1949).
[50] Some scientists and engineers have expressed reservations about nuclear power, including: Barry Commoner, S. David Freeman, John Gofman, Arnold Gundersen, Mark Z. Jacobson, Amory Lovins, Arjun Makhijani, Gregory Minor, Joseph Romm and Benjamin K. Sovacool.
These laws regulated public drinking water systems, toxic substances, pesticides, and ocean dumping; and protected wildlife, wilderness, and wild and scenic rivers.
In 1991, Greenpeace toxics researcher Pat Costner’s Arkansas home was set on fire, and Maine anti-logging activist Michael Vernon narrowly escaped a similar attack.
In October 1993, Leroy Jackson, a Native American environmentalist, was found dead in his van in New Mexico shortly before he was scheduled to testify in Washington, D.C., against the clearcutting of old-growth trees on Navajo land.
Werbach endorsed building an environmental movement that is more relevant to average Americans and controversially chose to lead Wal-Mart's effort to take sustainability mainstream.
However, the differences between the various groups that make up the modern environmental movement tend to outweigh such similarities, and they rarely co-operate directly except on a few major global questions.
In a notable exception, over 1,000 local groups from around the country united for a single day of action as part of the Step It Up 2007 campaign for real solutions to global warming.
Groups such as The Bioregional Revolution are calling on the need to bridge these differences, as the converging problems of the 21st century they claim compel the people to unite and to take decisive action.
[54][55] Although there have been serious debates about climate change and effects of some pesticides and herbicides that mimic animal sex steroids, science has shown that some of the claims of environmentalists have credence.
[55] Novelist Michael Crichton appeared before the U.S. Senate Committee on Environment and Public Works on September 28, 2005, to address concerns and recommended the employment of double-blind experimentation in environmental research.
Crichton suggested that because environmental issues are so political in nature, policymakers need neutral, conclusive data to base their decisions on, rather than conjecture and rhetoric, and double-blind experiments are the most efficient way to achieve that aim.
[57] In the December 1994 Wild Forest Review, Alexander Cockburn and Jeffrey St. Clair wrote "The mainstream environmental movement was elitist, highly paid, detached from the people, indifferent to the working class, and a firm ally of big government....The environmental movement is now accurately perceived as just another well-financed and cynical special interest group, its rancid infrastructure supported by Democratic Party operatives and millions in grants from corporate foundations."
"[58] In the past environmental organizations have focused "on preserving natural resources and endangered species instead of protecting people of color from hazardous waste sites being built in their communities".
In contrast to the conservationist approach the ecocentric view, associated with John Muir, Henry David Thoreau and William Wordsworth referred to as the preservationist movement.
Environmentalists often clash with others, particularly corporate interests, over issues of the management of natural resources, like in the case of the atmosphere as a "carbon dump", the focus of climate change, and global warming controversy.
[67] Often, low-income and minority communities are located close to highways, garbage dumps, and factories, where they are exposed to greater pollution and environmental health risk than the rest of the population.
One of the earliest lawsuits to establish that citizens may sue for environmental and aesthetic harms was Scenic Hudson Preservation Conference v. Federal Power Commission, decided in 1965 by the Second Circuit Court of Appeals.