✉news EnvironmentEnvironment first seen 9 h ago, last 4 h ago, peak #13
Alaska's rivers turning bright orange as permafrost thaws
Original: Alaska's rivers are turning bright orange - and we know why
Rivers across Alaska are turning a striking bright orange, and scientists say they now understand the cause. Thawing permafrost is releasing minerals such as iron into waterways, rusting streams across the state's remote wilderness. The discoloration is raising concern about impacts on fish and ecosystems.
Why now: Dramatic visible changes to iconic Arctic rivers linked to climate-driven permafrost thaw are drawing wide attention
Rank over time, top of the chart is #1. 7 snapshots from 9 h ago to 4 h ago.
Evidence
- Alaska's rivers are turning bright orange - and we know why · BBC Wildlife Magazine
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