Permafrost Hits a Grim Threshold 

For tens of thousands of years the Arctic’s carbon sink has been a powerful dynamic in functionality of the Earth System. However, that all-important functionality has been crippled and could be permanently severed. According to new research based upon field observations conducted from 2003 to 2017, a large-scale carbon emission shift in the Earth System More

Source: Permafrost Hits a Grim Threshold – CounterPunch.org

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