Web Links History and Ecology Links Blue Crab Life and Ecology The Chesapeak Bay Foundation Wolves - History, Conservation, Ecology, and Behavior History & Ecology of Fire in Michigan World Population Clock World in the Balance - PBS Population Study Weekly Summary of Planet Earths Natural History History, Ecology, and the Black Plague The History of Deforestation in Asia Smithsonian Study on the Extinction of the Dinosaur Human History and Species Extinction The 5 Worst Extinction's in Earth's History Ethics and the Environment The American Museum of Natural History - Study on Extinction Industrialization and its effects on the Environment Overpopulation, Industrialization, and the Environment History and Culture of the Arctic Circle Global Environmental Issues Website List of Natural History Museums Environmental Careers Government Agencies and Private Organizations The United Nations Education, Scientific and Cultural Organization (UNESCO) The National Institute of Environmental Health Sciences Defenders of Wild Life Organization The Nature Conservancy Organization US Fish and Wildlife Service The US Environmental Protection Organization (EPA) EPA Wetlands, Oceans, and Watersheds Page The Sierra Club League of Conservation Voters