Permafrost Thaw - GoKawiil

Alaska rivers turn orange as thawing permafrost releases high metal concentrations

Researchers studying remote Alaskan rivers have found some running orange, with metal concentrations measured up to 70 times above typical background levels. Scientists attribute the discoloration to thawing permafrost exposing previously frozen minerals to water and air, despite the watersheds being largely undisturbed by human activity.

gizmodo.com · 2026-09-25

Study: Natural Feedback Loops Could Add Up to 0.4°C to Global Warming by 2100

A new study finds that as global temperatures rise, thawing permafrost, drying forests, wildfires, and warming wetlands are releasing additional methane and carbon dioxide that current climate models largely fail to account for. Researchers estimate these natural feedback loops could amplify overall global warming by 20% to 30% by the end of the century, adding between 0.2C and 0.4C depending on how aggressively nations cut fossil fuel emissions.

news.slashdot.org · 2026-09-11