Programs

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

This work is possible because of partners like you. Every contribution matters.

Programs

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across political boundaries to hold polluters accountable.

• Long-term scientific monitoring of water quality shifts

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

Programs

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents crisis. Now I'm inspiring others.' — David T., Volunteer

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