New analyses of stored carbon in permafrost presented at last week’s annual American Geophysical Union (AGU) meeting are causing greater concern amongst climate scientists. One of the new analyses (Hugelius … [Read full article]
in 2007, the largest fire ever recorded in the Arctic swept across the Alaskan Northern Slope region, releasing an estimated 2.1 teragrams (2.3 million tons) of carbon into the atmosphere. Researchers estimate that the release of carbon was equivalent to a year’s worth of carbon storage for the entire Arctic tundra biome. Climate warming in the Arctic may lead to a greater frequency of such large fires, putting permafrost at risk of thawing and releasing more CO2.
The recent Gulf oil spill threatens the habitat of two species of sawfish–the smalltooth and largetooth sawfishes–as it works its way into the loop current and into the Gulf Stream, passing by Florida’s treasured marine habitats.