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

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

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We believe that nature can heal if we remove barriers. Our 20-year track record shows that change happens.

• Real-time data networks of water quality shifts

The water that flows through you connects you to 7 billion people — and future generations. Stand with us.

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'Thirty years ago, this river was forgotten. Thanks to this organization, native fish are returning. I bring my grandchildren to witness it.' — Commissioner James

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