"Permafrost warming in parts of Alaska is 'unbelievable'"

One of the world's leading experts on permafrost has told BBC News that the recent rate of warming of this frozen layer of earth is "unbelievable".
Researchers worry that methane frozen within the permafrost will be released, exacerbating climate change.
Prof Romanovsky says that the current evidence indicates that in parts of Alaska, around Prudhoe Bay on the North Slope, the permafrost will not just warm up but will thaw in about 50 years.
"Even if we stopped all emissions today, the Arctic has momentum where there is going to be more warming, more permafrost degradation and some carbon coming out already - we have started the ball rolling in some senses."

http://www.bbc.com/news/science-environment-34540414

There are some disturbing pics at site:
one of a house whose collapse may be due to permafrost melt.
and one of something called a "drunken forest" - trees pulled up and laying every which way.
as a result of permafrost melt.