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  • Systems such as the special type of permafrost called yedoma-so rich in carbon it's estimated to contain 100 times the amount released annually by combustion of fossil fuels.

    Carbon Call

  • Another study earlier this summer in the journal Science found that the amount of carbon trapped in this type of permafrost – called yedoma – is much more prevalent than originally thought and may be 100 times the amount of carbon released into the air each year by the burning of fossil fuels.

    Peace, order and good government, eh?: September 2006 Archives

  • The northern Siberian soil, called yedoma, covers 1.8 million square kilometers 700,000

    The Seattle Times

  • The northern Siberian soil, called yedoma, covers 700,000 square miles and is particularly unstable.

    The Seattle Times

  • Permafrost in the Northern Hemisphere is thought to contain some 950 billion tonnes of carbon; a little less than half of that is stored in highly organic-rich permafrost known as yedoma, much of which has been frozen since the Pleistocene, 10,000 years ago.

    Climate Ark Climate Change & Global Warming RSS Newsfeed

  • It is fed by methane-rich lakes underlain by yedoma (wind blown matter making organic-rich permafrost), with its quickly warming waters largely driving a 500% increase in flaw polynyas (ice-free sea areas in winter) over the ESAS, around the river's mouth, during the last two decades alone.

    Nathan Currier: Methane in the Twilight Zone (Third Episode)

  • Alaska and Canada have a few hundred square miles of yedoma, but Siberia is where global warming is thawing the greatest quantities of this permafrost flash-frozen 40,000 years ago.

    Carbon Call

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  • "Erosion after the last hundred centuries has eaten away the top 20 to 30 feet of the former Pleistocene plain, leaving behind only scattered mounds, called yedoma. These humps of the former steppe are the burial mounds of Ice Age animals."

    —Richard Stone, Mammoth: The Resurrection of an Ice Age Giant, (Cambridge, Mass.: Perseus Publishing, 2001), 36

    September 20, 2008