dedicated to fostering the evolution of an environmentally sustainable society--one in which human needs are met in ways that do not threaten the health of the natural environment or the prospects of future generations

dedicated to building an environmentally sustainable economy; raising awareness to support public response to population growth, rising CO2, loss of species, and other trends that are affecting the Earth

a partnership of major foundations seeking to advance energy efficiency and renewable energy; site provides links, programs, presentations, and downloads

an independent think tank committed to protecting the environment and to developing environmentally sound and sustainable solutions to meet human needs

a major research organization on energy efficiency, fostering the efficient and restorative use of resources to create a more secure, prosperous, and life-sustaining world

a consortium of universities that educate scientists and pursues research to enrich our understanding of the Earth system