Climate Action Fund

Sierra Club Foundation

The Sierra Club Foundation promotes climate solutions, conservation, and movement building through a powerful combination of strategic philanthropy and grassroots advocacy. The Foundation is the fiscal sponsor of Sierra Club’s charitable environmental programs.

The Nature Conservancy

The Nature Conservancy is a global environmental nonprofit working to create a world where people and nature can thrive. Founded in the U.S. through grassroots action in 1951, The Nature Conservancy (TNC) has grown to become one of the most effective and wide-reaching environmental organizations in the world. Thanks to more than a million members and the dedicated efforts of our diverse staff and over 400 scientists, we impact conservation in 81 countries and territories: 40 by direct conservation impact and 41 through partners.

Natural Resources Defense Council (NRDC)

NRDC works to safeguard the earth—its people, its plants and animals, and the natural systems on which all life depends.We combine the power of more than three million members and online activists with the expertise of some 700 scientists, lawyers, and policy advocates across the globe to ensure the rights of all people to the air, the water, and the wild.

Environmental Defense Fund

Environmental Defense Fund delivers bold, practical solutions to the world's biggest environmental challenges. Guided by science and economics, we work to stabilize the climate, strengthen people's health and help communities and nature thrive. Working in more than 30 countries, we focus where we can make the greatest impact — from cutting methane and carbon pollution and accelerating clean energy and transportation to strengthening food and water systems and harnessing nature's power to fight climate change. By bringing together communities, businesses, governments and other organizations, EDF turns innovative ideas into lasting environmental progress.