An orange tributary of the Kugororuk River is pictured in Alaska. Scientists are trying to find out why rivers and streams across Alaska's Arctic are turning a rusty orange color.

An orange tributary of Alaska's Kugororuk River Josh Koch, U.S. Geological Survey Some of the water samples had a pH of 2.3, compared to an average pH of 8 for rivers, which means the impacted ...

The orange color comes from the presence of iron mobilized by thawing. Credit: Taylor Roades But how, exactly, permafrost thaw is turning these rivers orange has been a mystery.

Alaska's rivers and streams are becoming toxic as a strange "milky orange" color stains their waters, a new study has found. The research from the National Park Service, U.S. Geological Survey ...

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.

For the first time, scientists from across North America have formed a clear picture of Alaska's 'rusting' rivers and streams, tracking 75 areas in the remote Brooks Range that are flushed with ...

Why are Alaska’s rivers turning orange? ... Published May 21, 2024 12:35 PM EDT. An aerial view of the rust-colored Kutuk River in Gates of the Arctic National Park in Alaska.

In Alaska, dozens of the state's rivers are turning orange and climate change seems to be to blame. According to a recent study published in the journal Communications Earth & Environment, iron ...

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.

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

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 ...