Arctic rivers flowing through Alaska are increasingly turning orange as wildfires, thawing permafrost and other factors ...

The past water year, October 2024 through September 2025, brought the highest Arctic air temperatures since records began 125 ...

A yearly checkup on the region documents a warmer, rainier Arctic and 200 Alaskan rivers “rusting” as melting tundra leaches ...

Iron and other metals released into rivers have polluted the once-clear streams and turned them into shades of brown, bronze, and orange over the past decade.

This year's Arctic Report Card from the National Oceanic and Atmospheric Administration finds that the northernmost part of ...