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Other than being outstandingly beautiful and harsh to live in, the Arctic tundra is also one of the largest carbon sinks in the world, beside the oceans. Over millennia, impressive amounts of carbon dioxide (CO2) have been trapped by the soils and permafrost in these regions, and have been stored in the frozen ground ever since. Now, as the tundra gets warmer â€" as evidenced by the fact that smaller or larger lakes keep popping up all over the place â€" those large amounts of carbon could soon be gradually released into the atmosphere, further ruining its already delicate balance. “It's a big deal. These are aspects that haven't been recognized before,†San Diego State University ecologist Walter Oeche, who has also been the principal investigator of the new paper, says of the finds. The finds were presented at the annual meeting of the Ecological Society of America (ESA) on August 3rd, in Albuquerque, New Mexico. In addition to the danger CO2 poses, geologists have !
also known for a long time that important quantities of methane are also stored there, and their emission levels seem to have spiked in recent years as well. In an attempt to determine precisely how the warming world influences the delicate balance of the tundra ecosystem and carbon cycles, Oeche's team purposefully unbalanced ...
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http://news.softpedia.com/news/Warming-Tundra-Releases-Carbon-Dioxide-118363.shtml
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