Environmentalism is the position that a high value should be placed on the natural environment as unaltered by human activities.
As human population and industrial activity have increased, environmentalism has become a source of considerable controversy, with those who place high importance on environmentalism (environmentalists) coming into conflict with those who accord it lesser importance.
See also: Green Party, Global warming, Humanism, Political spectrum, Ecology, Gaia theory, Rush Limbaugh/Environmental wacko, Radical environmentalism