Grist | Topics | 3 Results

RESULTS		Results 1 – 3 of 3
Headline	Author	Published	Section
A pain of a gas: Has runaway climate change begun? Methane releases from under the Arctic seabed could jeopardize GHG stabilization	Joseph Romm	24 Sep 2008	Gristmill
The U.K.'s Independent reported today some pretty shocking news in 'Exclusive: The methane time bomb': The first evidence that millions of tons of a greenhouse gas 20 times more potent than carbon dioxide is being released into the atmosphere from beneath the Arctic seabed has been discovered by scientists ...The Independent has been passed details of preliminary findings suggesting that massive deposits of sub-sea methane are bubbling to the surface as the Arctic reg ...
Topics: greenhouse-gas emissions, Arctic, Russia, climate change impacts, climate science, climate (all these topics)

Slip of the tundra CO2 released from disappearing permafrost must be factored into climate projections	Joseph Romm	23 May 2008	Gristmill
What is the point of no return for the climate -- the level of CO2 concentrations beyond which catastrophic outcomes are virtually unstoppable? No one knows for sure, but my vote goes for the point at which we start to lose a substantial fraction of the tundra's carbon to the atmosphere -- substantial being 0.1 percent per year! As we saw in my last post, frozen away in the permafrost is more carbon than the atmosphere currently contains (and much of that is in the fo ...
Topics: Arctic, climate, climate change impacts, climate science, greenhouse-gas emissions (all these topics)

The permafrost won't be perma for long More carbon in the Arctic than previously thought	Joseph Romm	23 May 2008	Gristmill
The tundra is probably the single most important amplifying carbon-cycle feedback. None of the IPCC's climate models, however, include carbon emissions from a defrosting tundra as a feedback. Yet, as NOAA reported last month, levels of methane (a far more potent greenhouse gas than CO2) rose last year for the first time since 1998, which may be an early indication of thawing permafrost. So it seems like a good a time for a review and update of what we know. The tund ...
Topics: Arctic, climate, climate change impacts, climate science, greenhouse-gas emissions (all these topics)

Stories About: Arctic AND climate AND climate change impacts AND climate science AND greenhouse-gas emissions