Methane Seeps Out as Arctic Permafrost Starts to Resemble Swiss Cheese

[BOB BERWYN, INSIDECLIMATE NEWS, Julio 19, 2017] Measurements over Canada’s Mackenzie River Basin suggest that thawing permafrost is starting to free greenhouse gases long trapped in oil and gas deposits. In parts of northern Canada’s Mackenzie River Delta, seen here by satellite, scientists are finding high levels of methane near deeply thawed pockets of permafrost….