Natural Resources Defense Council (NRDC)
National Climate Change
#1 Top Nonprofit
The Natural Resources Defense Council's purpose is to safeguard the Earth. They work to restore the integrity of the elements that sustain life and to defend endangered natural places. They seek to establish sustainability and good stewardship of the Earth…

Sierra Club
Bay Area Climate Change
#2 Top Nonprofit
Sierra Club's mission is to explore, enjoy, and protect the wild places of the earth; To practice and promote the responsible use of the earth's ecosystems and resources; To educate and enlist humanity to protect and restore the quality of…

World Resources Institute
National Climate Change
#3 Top Nonprofit
The World Resources Institute's mission is to move human society to live in ways that protect Earth’s environment and its capacity to provide for the needs and aspirations of current and future generations.

Natural Resources Defense Council (NRDC)
Bay Area Climate Change
#4 Top Nonprofit
NRDC's mission is to safeguard the Earth: its people, its plants and animals and the natural systems on which all life depends.

Environmental Defense Fund
National Climate Change
#5 Top Nonprofit
Environmental Defense Fund is dedicated to protecting the environmental rights of all people, including future generations. Since 1967, they have linked science, economics and law to create innovative, equitable and cost-effective solutions to society's most urgent environmental problems. Guided by…

Sierra Club
National Climate Change
#6 Top Nonprofit
The Sierra Club's mission is to explore, enjoy, and protect the wild places of the earth; To practice and promote the responsible use of the earth's ecosystems and resources; To educate and enlist humanity to protect and restore the quality…

Greenbelt Alliance
Bay Area Climate Change
#6 Top Nonprofit
Greenbelt Alliance protects open spaces and creates vibrant places throughout the San Francisco Bay Area. They work in partnership with diverse coalitions on public policy development, advocacy, and education.

National Wildlife Federation
National Climate Change
#7 Top Nonprofit
National Wildlife Federation inspires Americans to protect wildlife for our children's future.

World Wildlife Fund
National Climate Change
#8 Top Nonprofit
The World Wildlife Fund's mission is the conservation of nature. Using the best available scientific knowledge, they work to preserve the diversity and abundance of life on Earth and the health of ecological systems by protecting natural areas and wild…

Rainforest Action Network (RAN)
Bay Area Climate Change
#8 Top Nonprofit
Rainforest Action Network's mission is to want those who come after us to inherit a world where the wild is still alive.

Nature Conservancy
National Climate Change
#9 Top Nonprofit
The mission of The Nature Conservancy is to preserve the plants, animals and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive.

League of Conservation Voters
National Climate Change
#10 Top Nonprofit
The League of Conservation Voters' mission is to advocate for sound environmental policies and to elect pro-environmental candidates who will adopt and implement such policies.

Center for Biological Diversity
Bay Area Climate Change
#10 Top Nonprofit
The Center for Biological Diversity believes that the welfare of human beings is deeply linked to nature — to the existence in the world of a vast diversity of wild animals and plants. Because diversity has intrinsic value, and because its loss impoverishes society, they work…

Sea Shepherd Conservation Society
National Animal Welfare, Rights, & Protection
#12 Top Nonprofit
To end the destruction of habitat and slaughter of wildlife in the world's oceans in order to conserve and protect ecosystems and species.

Greenpeace
National Climate Change
#14 Top Nonprofit
Greenpeace's mission is to expose global environmental problems, ensure that the Earth is able to nurture life in all its diversity and promote solutions for future generations. Greenpeace, Inc. is the leading independent campaigning organization that uses peaceful direct action…

Center for Biological Diversity (CBD)
National Animal Welfare, Rights, & Protection
#15 Top Nonprofit
At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature to the existence in our world of a vast diversity of wild animals and plants. Because diversity has intrinsic value, and…