As they span significant areas of Asia, Europe and the Americas, karst landscapes cover some 15 percent of the Earth’s land mass. Scientists estimate that these areas of porous bedrock are home to as ...

So what might a Clean Water Act designed for the 21st century—one that addresses both legacy pollution and emerging problems—look like? A meaningful way to address polluted runoff, so-called “nonpoint ...

And lastly, California representatives ask for a state of emergency over health hazards from Tijuana River pollution. “Immediate action must be taken to respond to this imminent and serious threat to ...

Ninth Circuit Appellate Court Hears Arguments to Compel Federal Action By Keith Schneider, Circle of Blue  For the third ...

The Rundown Senators introduce bipartisan bill to settle Colorado River and other water rights for Navajo, Hopi, and San Juan Southern Paiute tribes. FEMA finalizes new standards for using federal ...