The Environmental Defense Fund works to provide solutions under the broad categories of climate change, oceans, wildlife and habitats, and health. The EDF works with other organizations, businesses, government, and communities to create incentives for positive environmental actions; help companies become better environmental stewards; influence policy; and keep tabs on emerging issues.

The Nature Conservancy protects ecologically important lands and waters around the world with the help of more than 500 staff scientists.

The Natural Resources Defense Council seeks to protect the basics—air, land, and water—and to defend endangered natural places, with an eye toward how these long-term decisions affect humans.

The Sierra Club Foundation is the fiscal sponsor of the Sierra Club’s charitable environmental programs, and promotes efforts to educate and empower people to protect and improve the natural and human environment. The Sierra Club is the principal, though not exclusive, recipient of SCF’s charitable grants.