The Permafrost is not so Perma

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"The Permafrost is not so Perma"

The future of the earth’s climate becomes more certain every day for two reasons. First, absent the leadership of the richest and most-polluting country, global levels of greenhouse gas emissions continue to rise at an alarming pace. This makes it more likely we will see the high end of current projections for both future greenhouse gas concentrations and climate impacts.

Second, almost every week we learn more about the dangerous positive feedbacks or vicious cycle in the climate system, whereby an initial warming causes changes that release more greenhouse gas emissions, which in turn causes more warming, and more emissions, and so on and on.

Perhaps the most dangerous vicious cycle is the melting of the Arctic permafrost, which contains more carbon locked away in frozen soil than the entire atmosphere holds today. Worse, thawed permafrost can release its carbon as methane, which is more than 20 times as potent a greenhouse gas as carbon dioxide.

permafrost-better.jpg

New research finds that the Arctic contains far more carbon than previously thought (Science, subs. req’d) and that methane is bubbling up out of the tundra far faster than previously thought (Nature, subs. req’d). As the Associated Press put it, humans “may be triggering a self-perpetuating climate time bomb.”

We must all act to ensure that the President elected in 2008 has far more interest in stopping this time bomb than the current president who has none.

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6 Responses to The Permafrost is not so Perma

  1. […] scenarios, which are really nothing more than business-as usual emissions plus amplifying carbon-cycle feedbacks, would give us sea level rising at a rate 6 inches a decade in 2100. In such an inundated world, […]

  2. Elise Evans says:

    i think its a load of crap

  3. Elise Evans says:

    this is another one of earths phases, not humans’ fault. Yes, we should take a whole lot better care of earth. but global warming due to humans is a bunch of shiz

  4. Don Nguyen says:

    These gases can poison us toward mass extinction within 4-5 yrs if we don’t change now. Go Veg, Be Green, to save this planet! Don’t believe me, check out http://www.suprememastertv.com and click on SOS. God Speed to save the world. Peace

  5. Hobi says:

    Elise Evans, if you don’t think its caused by human, but that we should do something about it, why would you disencourage other people by saying that bullcrap?

  6. ert says:

    This is important how would you feel if you lived there and your house stated melting ang everythung unsude ut too. Without warning.