Programs

Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use science to protect it all.

This work is possible because of scientists like you. Learn how you can join.

Programs

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We predict risks so policy can shift.

• Legal advocacy driving stronger standards

The water that flows through you connects you to 7 billion people — and billions more organisms. Protect it with us.

Programs

'Thirty years ago, this river was dying. Because we organized, native fish are returning. I watch the difference daily.' — Commissioner James

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We monitor trends so communities can act.