Each year Alaska's north slope is receeding by a half a meter as global warming melts the permafrost shoreline. Global sea levels may also rise over time as they continue a trend started in the late 19th century. 2007 and 2011 virtual tied as the Arctic ice cover's minimum size or maximum melt. I would guess that 2012 will be a record setter for icecap loss.
http://www.arctic.noaa.gov/detect/index.shtml Arctic Change
As the Arctic ocean warms it will also become more tempestuous sending storms of greater intensity to low-lying coastal areas. More pollution from more human industrial activity will broadcast deleterious impacts farther abroad in the warming ocean.
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