One of several giant craters discovered in remote areas of Siberia
Vasily Bogoyavlensky/AFP via Getty Images
A deep cylindrical crater in Siberian permafrost has puzzled researchers since it was discovered a decade ago. Researchers now claim that this distinctive structure is caused by hot gases accumulating beneath the permafrost. As temperatures rise in the Arctic, permafrost weakens and gases can explode from its surface.
“Climate change is likely the trigger, but climate change occurs because gases thin permafrost,” he says. Helge Hellewang in…
Source: www.newscientist.com
