Who We Are

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

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

Who We Are

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

• Early warning systems of water quality shifts

Join thousands of climate leaders pushing back against pollution.

Who We Are

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my data prevents extinction. Now I'm inspiring others.' — Sarah K., Water Guardian

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