This Yale Environment 360 article discusses a study that shows that melting Permafrost is releasing high levels of nitrous oxide, a potent Greenhouse Gas.
Thawing permafrost in the Arctic may be releasing 12 times as much nitrous oxide as previously thought, according to a new study published in the journal Atmospheric Chemistry and Physics. Nitrous oxide, a powerful greenhouse gas 300 times more potent than carbon dioxide, can remain in the atmosphere for up to 114 years, according to the U.S. Environmental Protection Agency (EPA).