Saturday, August 01, 2015

Alaska’s Terrifying Wildfire Season and What It Says About Climate Change

Almost 5 million acres have burned, and scientists say the blazes are the latest sign of a region transformed. (Credit: Marc Lester/For The Washington Post) Click to Enlarge.
The staggering 2015 Alaska wildfire season may soon be the state’s worst ever, with almost 5 million acres already burned — an area larger than Connecticut.  The pace of the burn has moderated in the last week, but scientists say the fires are just the latest indicator of a climatic transformation that is remaking this state — its forests, its coasts, its glaciers, and perhaps most of all, the frozen ground beneath — more than any other in America.
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Also pummeled are the state’s Arctic coastlines, which are facing intense erosion as seas rise and declining sea ice exposes shores and barrier islands to punishing waves.  The situation has grown so bad that some native communities, including tiny Kivalina, Alaska, sitting on a barrier island along the Chukchi Sea, may now have to be relocated, given the dangerous loss of land to the sea.

Earlier snowmelt transforms the state further.  In 2015, the starting place of the Iditarod sled dog race had to be relocated north, to Fairbanks, because there wasn’t enough snow on the ground in some places.

But arguably the most dramatic change — threatening to transform the state’s 126 million acres of forests and, perhaps, worsen climate change in the process — is occurring with the state’s wildfires.

Alaska’s forests make up 17 percent of the U.S. total, and while they’ve always burned, they may now be entering a major new combustive period.  The blazes are so intense and extensive that they could transform an entire ecosystem, even as the fires also hasten the thawing of permafrost — which itself contains vast quantities of ancient carbon, ready to be emitted to the air.

Read more at Alaska’s Terrifying Wildfire Season and What It Says About Climate Change

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