a comprehensive map of the world, showing how human beings directly influence more than three quarters of the earth's landmass

works to secure the sustainable future of the United States, focusing on achieving national revitalization, population stabilization, immigration reduction, economic sustainability, and resource conservation

working to slow population growth and achieve a sustainable balance between the Earth's people and its resources

informing people about the population dimensions of important social, economic, and political issues; providing timely and objective information on U.S. and international population trends and their implications

a program by the US EPA to encourage smart growth - development that serves the economy, the community, and the environment