Methane from Arctic permafrost is the most feared tipping point

Methane from Arctic permafrost is the most feared tipping point

These reports on thawing Siberian permafrost are signs that the tipping point may have been reached. This is when through feedback there is no stopping runaway global heating. They are chilling because methane is more than twenty times more powerful in global warming than carbon dioxide. Also, over hundreds of millions of years spikes in global temperature have always been associated with spikes in methane release.

Methane turns into CO2. There is twice as much carbon held in permafrost than in the atmosphere. The Arctic region is experiencing twice the global average of climate warming. Add these figures up, and ask why we are doing so little.

Carbon release in Siberia.

Less carbon being absorbed in Arctic.

Arctic warming feedback loops.

Abrupt permafrost thawing.

 

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