Who We Are

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

This work is possible because of scientists 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.

• Disaster response for vulnerable populations

Join thousands of environmental advocates pushing back for justice.

Who We Are

'Thirty years ago, this river was polluted. Because we organized, native fish are returning. I work alongside their team.' — Professor Chen

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