Breakdown of permafrost releases this CH4 as well.

The permafrost collapse is destabilizing the planet.

In Alaska, thawing permafrost is damaging military facilities. …

Thus, thawing permafrost actually speeds up global warming.

Melting permafrost is both a consequence and a trigger of climate change.

Global warming has led to thawing of permafrost in the Earth's Artic regions.

Permafrost may release largest Mercury source on Earth

Permafrost melt will liberate huge amounts of methane into the atmosphere.

Permafrost melt will liberate huge amounts of methane into the atmosphere.

Scientists are guessing that it comes from gas trapped in the permafrost.

Permafrost Loss Changes Yukon River Chemistry with Global Implications

Permafrost loss changes Yukon River chemistry with global implications

Warming Arctic permafrost releasing large amounts of potent greenhouse gas

Permafrost Loss Dramatically Changes Yukon River Chemistry and Hydrology with Potential Global Implications

The thaw of the permafrost can also endanger the region's biodiversity.