Science 2.0: Every dark cloud has a silver lining and the silver lining for a thawing permafrost is...still a dark cloud.
The climate is warming in the Arctic at twice the rate of the rest of the globe. That has led to a longer growing season and increased plant growth, which captures atmospheric carbon - that is good - but it is thawing the permafrost, which releases carbon into the atmosphere. Permafrost contains three to seven times the amount of carbon sequestered in tropical forests. A thawing permafrost...