<P> The United States passed many pieces of environmental legislation in the 1970s, such as the Clean Water Act, the Clean Air Act, the Endangered Species Act, and the National Environmental Policy Act . These remain as the foundations for current environmental standards . </P> <Ul> <Li> 1832 - Hot Springs Reservation </Li> <Li> 1864 - Yosemite Valley </Li> <Li> 1872 - Yellowstone National Park </Li> <Li> 1892 - Sierra Club </Li> <Li> 1916 - National Park Service Organic Act </Li> <Li> 1916 - National Audubon Society </Li> <Li> 1949 - UN Scientific Conference on the Conservation and Utilization of Resources </Li> <Li> 1961 - World Wildlife Foundation </Li> <Li> 1964 - Land and Water Conservation Act </Li> <Li> 1964 - National Wilderness Preservation System </Li> <Li> 1968 - National Trails System Act </Li> <Li> 1968 - National Wild and Scenic Rivers System / Wild and Scenic Rivers Act </Li> <Li> 1969 - National Environmental Policy Act </Li> <Li> 1970 - First Earth Day - 22 April </Li> <Li> 1970 - Clean Air Act </Li> <Li> 1970 - Environmental Protection Agency </Li> <Li> 1971 - Greenpeace </Li> <Li> 1972 - Clean Water Act </Li> <Li> 1973 - Endangered Species Act </Li> <Li> 1980 - Earth First! </Li> <Li> 1992 - UN Earth Summit in Rio de Janeiro </Li> </Ul> <Li> 1832 - Hot Springs Reservation </Li> <Li> 1864 - Yosemite Valley </Li>

When and where was the green movement started and what has been its contribution