exploitation of land for agricultural, industrial, residential, recreational, or other purposes. Because the United States historically has a laissez-faire attitude toward land use, the land has been exploited at will for economic gain. Only in recent decades have Americans realized that land is not a limitless commodity. Increasing population and industrial expansion have generated urban sprawl, with thousands of square miles of open space being taken over annually for housing and business. As a result congestion and widespread pollution, along with depletion of water and mineral resources and destruction of wilderness and wildlife habitats, have become increasingly severe (see also environmentalism).
Since environmental problems arise largely from the way land is used, traditional land-use policy has come under challenge. Zoning regulations are one example of legal limitations on land use. Another is the common-law concept of nuisance, which places limits and responsibilities on the rights of ownership. On such grounds, pressure for land-use reform has sharply intensified since the 1960s. It is argued that as accessible land grows scarcer, its function becomes more critical, therefore choice of that function should no longer be dictated by private profit or local convenience. Moreover, local laws and zoning regulations are inadequate for settling land-use questions involving regions that cut across local boundaries, such as wetlands, shorelines, and floodplains, or large-scale facilities such as strip mines, sewer systems, power plants, and highways. As a consequence, environmentalists have gone to court to prevent or resite the construction of projects that would degrade the environment. Land-use court battles have been waged over the siting of jetports, petroleum refineries, offshore tanker depots and drilling rigs, nuclear power stations, high-voltage transmission lines, dams, and even shopping centers and housing developments. The U.S. Dept. of Agriculture (USDA), in its periodic inventory of natural resources, reported in 1999 that during the five-year period from 1992 to 1997 the nation's privately held forests, croplands, and wetlands were lost to development in and around cities and towns at twice the rate they were from 1982 to 1992.
The land-use policy of such public lands as the U.S. national parks and forests is a matter of continuing controversy. Under the control of the USDA, the policy is to protect the environment while permitting some commercial exploitation of renewable resources. Critics charge that the encouragement of tourism overutilizes already fragile ecological systems and that the USDA favors timber companies over preservation of old-growth forests. In the early 1990s the issue was starkly illustrated by the spotted owl, a threatened species whose habitat in old-growth forests under federal supervision was threatened by timber-cutting policies. One possible solution is to create a biosphere reserve, which provides a core area in which no disturbance to the ecosystem is permitted, a transition area in which experimental research is allowed, and a buffer zone that protects the biosphere from external development pressures.
Legislative action has also been sought, with considerable success. The scope of legislation has expanded, as areas once considered of marginal value, such as the polar regions, temperate wetlands, and tropical rain forests, are included in environmental planning. Although varying in scope and stringency, land-use laws are now in force in most of the United States. The National Environmental Policy Act of 1969 requires that federal agencies file statements assessing the environmental impact of proposed projects (see environmental impact statement). Agencies such as the Army Corps of Engineers and the Nuclear Regulatory Commission must now subject their land-use proposals to the Environmental Protection Agency and therefore to public scrutiny. This requirement, along with other legislation empowering citizens to sue industry and government for failure to comply with air pollution and water pollution standards, has profoundly affected land-use decisions. Although conservatives sometimes criticize legislation for the time-consuming and costly obligations it places on private business, environmental activists argue that the act promotes only a modest level of conservation.
- See The Vanishing Land (1985). ,
- Keep Out: The Struggle for Land Use Control (1986). ,
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