NRDC
http://www.nrdc.org
Natural Resources Defense Council (NRDC) uses law, science, and the support of more than 1 million members and activists to protect the planet's wildlife and wild places and to ensure a safe and healthy environment for all living things
Waterkeeper Alliance
http://www.waterkeeper.org
Waterkeeper Alliance is a grassroots advocacy organization with 157 local Waterkeeper programs and growing. They are dedicated
to preserving and protecting YOUR WATER from polluters.
Conservation International
http://www.conservation.org
CI applies innovations in science, economics, policy and community participation
to protect the Earth's richest regions of plant and animal diversity in the
biodiversity hotspots, high-biodiversity wilderness areas as well as important
marine regions around the globe.
Global Green
http://www.globalgreen.org
Global Green works with government, industry and individuals to create a global value shift toward a
sustainable and secure future.