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Permafrost

Arctic Permafrost Is Melting Into Rivers, Releasing Carbon Frozen for Thousands of Years

A 44-year study of Alaska's North Slope reveals how thawing permafrost is flushing ancient dissolved carbon into Arctic rivers and reshaping coastal ecosystems.

Casey Cooper·April 8, 2026 at 4:14 PM UTC

Preserved woolly mammoth calf emerging from permafrost ice with reddish-brown fur visible

Science

The Oldest RNA Ever Found Came from a Woolly Mammoth

Scientists recovered 40,000-year-old RNA from a frozen mammoth, revealing which genes were active in its final hours. This changes everything we thought we knew about extinct species.

Casey Cooper·January 10, 2026

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