Rivers and streams in remote parts of Alaska have been turning orange for years. Scientists believe they know what's behind the color change.

In recent years, scientists have observed streams and rivers that have turned a vibrant orange color across Alaska's Arctic region.

An ecological nightmare is unfolding in the largest US state by land area, Alaska as several of its rivers turn bright orange. The alarming sight, which is also visible from space, is a matter of ...

Streams in Alaska are turning orange with iron and sulfuric acid. Scientists are trying to figure out why ...

Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study.

Breakthroughs, discoveries, and DIY tips sent every weekday. Thawing permafrost may be turning clear water in some of Alaska’s remote watersheds into a dusty, murky orange.

A new study shows that rusty discoloration in Alaska’s otherwise pristine streams and rivers is likely due to melting permafrost—and that’s a problem for Arctic animals and people.

Alaska's melting permafrost is dumping toxic metals into the state's rivers, turning them bright orange and making the water highly acidic. The contaminated rivers are so vibrant they can be seen ...

Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study.

This story originally appeared on High Country News and is part of the Climate Desk collaboration. Dozens of once crystal-clear streams and rivers in Arctic Alaska are now running bright orange ...

Rivers and streams in remote parts of Alaska have been turning orange for years. Scientists believe they know what's behind the color change.

Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study.