Alaska's rivers are turning bright orange, and scientists are working to figure out exactly why. In recent years, scientists have observed streams and rivers that have turned a vibrant orange color ...

Researchers for years have been baffled as rivers and streams across Alaska turned orange, but new research points to climate change as an answer. Scientists suspect the drastic color change is the ...

For the first time, a large team of scientists from across North America has formed a clear picture of Alaska's 'rusting' rivers and streams, closely tracking 75 areas in the remote Brooks Range that ...

Across Arctic Alaska, once-clear rivers are shifting to a startling rust color, a visible scar of a warming climate etched ...

Some of Alaska’s scenic rivers and streams look downright apocalyptic this year because they turned a flagrant orange color — but it’s not due to local pollution, according to scientists at the ...

(CNN) — 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. The finding ...

Dozens of Alaska’s most remote streams and rivers are turning from a crystal clear blue into a cloudy orange, and the staining could be the result of minerals exposed by thawing permafrost, new ...

The salmon declines in Alaska’s arctic, the Yukon and Kuskokwim rivers are not just a flashing warning sign of ecological distress; they are a direct threat to the cultural and traditional sustenance ...

It was a cloudy July afternoon in Alaska's Kobuk Valley National Park, part of the biggest stretch of protected wilderness in the U.S. We were 95 kilometers (60 miles) from the nearest village and 400 ...