Source: http://www.npr.org/2011/07/29/138810844/fire-made-arctic-spew-rather-than-absorb-carbon?ft=1&f=1007
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Sunday 31 July 2011
Fire Made Arctic Spew, Rather Than Absorb, Carbon
The Arctic tundra has been relatively thunderstorm-free for 10,000 years. But conditions are changing in the far north, and in 2007 a lightning strike caused the biggest wildfire ever recorded on the North Slope of Alaska. The tundra is normally a carbon sink, but scientists report in the journal Nature that that single fire released more carbon into the atmosphere than the entire Arctic tundra absorbs every year.
