Prefer Newsweek on Google to see more of our trusted coverage when you search. Alaska's rivers are turning bright orange, and scientists are working to figure out exactly why. In recent years, ...

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 from ...

Across Arctic Alaska, once-clear rivers are shifting to a startling rust color, a visible scar of a warming climate etched into the landscape. What looks like a strange natural dye job is in fact a ...

(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 ...

Permafrost sounds permanent, but there’s a catch: the top portion, called the active layer, freezes and thaws every year. In ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ANCHORAGE, Alaska (AP) — Ice jams that ...