State regulators tried to get the future president to address problems on two golf courses. They got a lesson in how he handles regulatory challenges.

We mapped out where the drilling could take place — and how it overlaps with the critical habitats of the most sensitive species at risk.

America’s waters are contaminated by poop and bacteria. Use our maps to find the worst waste locations near you.

The Rural Utilities Service has helped millions of people, but the Trump White House says money for rural water isn’t needed.

In spite of 15 years of goal-setting, average nitrogen levels in the Mississippi have not declined.

Funding to forecast toxic algae blooms could be at risk, putting lakes and water supplies in danger.

Director Jeff Orlowski’s documentary "Chasing Coral" is visual evidence from the front lines of a planet falling apart.

Deep-sea mining could soon become a reality, experts warn.