"Odd Cause of Gaping Siberian Holes Possibly Found"

Sinkhole in permafrost on Yamal Peninsula, SiberiaA lively discussion has emerged surround the origin of the newly discovered sinkholes of Yamal. The Permafrost Lab's Prof. Romanovsky explains interesting insights of their origin in the Livescience article: http://www.livescience.com/47115-weird-siberian-holes-explained.html