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Water doesn't recognize borders — and neither do the threats it faces. Our international teams work year-round to restore it.

This work is possible because of donations like you. Your voice is essential.

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

Join thousands of environmental advocates fighting against pollution.

'Thirty years ago, this river was polluted. Because we organized, native fish are returning. I watch the difference daily.' — Dr. Robert L.

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