Giant craters in Canada’s melting permafrost impacting climate change: researchers



Shrink permafrost releasing carbon dioxide to atmosphere, contributing to greenhouse operational

CBC News Posted: Aug 29, 2017 5:42 PM ET Last Updated: Aug 29, 2017 5:42 PM ET

Researchers are investigating gigantic craters of melting permafrost in northern Canada, which they say are both a consequence of aura change and a contributing factor.

Scientists say warming temperatures are melting a beforehand frozen layer under the surface in Fort McPherson, N.W.T. Frozen bodies in that surface are now being exposed to the air, producing carbon dioxide and giving to the greenhouse effect.

“We know there is twice as much carbon engaged up in permafrost as there is carbon dioxide in the atmosphere,” says Suzanne Tank, a researcher and combine professor at the University of Alberta.

“So certainly there is the potential there for this carbon, if it’s unchained as carbon dioxide, to have a really huge effect on greenhouse gasses and ambience warming.”

Scientists are looking to collect samples from the craters to yield more information about the problem, which they call a “saw wood giant.”

“There is this uncertainty associated with what this rest giant is going to look like,” says Tank.

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