Results

Water doesn't recognize borders — and neither do the threats it faces. Our regional teams work tirelessly to protect it.

This work is possible because of scientists like you. Every contribution matters.

Results

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to solve problems at their source.

• Legal advocacy driving justice

Join thousands of environmental advocates organizing against pollution.

Results

'Thirty years ago, this river was polluted. Thanks to this organization, native fish are returning. I watch the difference daily.' — Dr. Robert L.

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