Super-sized carbon deposits in arctic pose new greenhouse gas threat

Study concludes that if the permafrost thaws, carbon and methane emissions will skyrocket


 

A newfound discovery of super-size frozen carbon deposits in the arctic has scientists worried that permafrost carbon thawing could accelerate climate change. A study has shown that there is more than twice the amount of carbon stored in the arctic and boreal regions than was suspected‹over 1.5 trillion tons of frozen carbon (approximately twice as much CO2 in the atmosphere now). If the permafrost thaws, it may lead to significant emissions of carbon and methane into the atmosphere. “Permafrost carbon is a bit of a wildcard in the efforts to predict future climate change,” says Dr Canadell, co-author of the study.

Science Daily


 
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Super-sized carbon deposits in arctic pose new greenhouse gas threat

  1. But surely our new arctic factory farms will adequately sequester the carbon…?

  2. This is not new news! James Lovelock has written about Arctic carbon being one of the feedback devices which will provide a tipping point that we may have already passed. 500 ppm will be the new watchword to a "new" world for a couple of hundred thousand years.

  3. Yawn, more doomsday blather from the hucksters. Gotta keep the hysteria at a fever pitch or all those millions of unemployed people who will soon have no money at all to fork over to Big Al. (and no carbon footprint what so ever, since the homeless cant afford, heat,lights or gasoline or much of anything else). As I watch my home province de-industrialize and de-populate, I think a lot of people have real problems, right here, right now. Fairy tales are the last think most people are worried about today. Oh, and by the way, the CBC reported on July 2nd, that the ice was so thick this year, the summer suppy ships going to Nunavit had to call in extra ice breakers to get though. Darn that mother nature, just wouldn't get with program. Cheers.

  4. Glo-Bull Warming is out and out fraud and those who believe the fat ass Al Gore are nothing more than useful idiots;

    "Tree-ring chronologies from living and sub-fossil Pinus flexilis James (limber pine) trees extend back more than 500 yr on the western edge of the Great Plains in Alberta. Living trees were found to be as old as 526 yr. Tree-ring growth in Pinus flexilis is most sensitive to annual precipitation over the annualization period August to July. The longevity of the trees coupled with their sensitivity to variations in annual precipitation make them an important resource for constructing annually resolved multicentury records of paleohydrology on the northwestern Great Plains. A 487-yr reconstruction of annual precipitation in southwestern Alberta was produced from the tree-ring series. This is the longest dendroclimatological reconstruction of precipitation available from the northern plains. The reconstruction has some similarity to reconstructions from the western Great Plains of the United States. However, there are also many divergences in the timing of droughts. Some of this divergence may reflect the importance of orographic uplift in producing precipitation along the eastern flanks of the Rocky Mountains. Our reconstruction shows that the frequency of droughts in Alberta during the period of instrumental records, about the last 100 yr, has not been appreciably different from conditions of the preceding four centuries. In addition, the most severe drought of this century, which led to widespread farm abandonment between 1918 and 1922, was not the most severe drought in the past 487 yr."