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

This work is possible because of scientists like you. Together we can turn the tide.

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

Every action counts — from small donations to big movements. The future is ours if we act together.

'Thirty years ago, this river was polluted. Through their work, 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 propose solutions so policy can shift.