28 Dec '11, 6pm

Dot Earth Blog: More Views on Climate Risk and Arctic Methane

We have 800,000 years of methane records from the Antarctic EPICA Dome C ice core [link to relevant paper ]. The highest values are encountered during several past interglacial periods (stage 19, about 800,000 years ago; stage 9.3, about 300,000 years ago). The sharpest methane concentration increases occur during deglaciations, in phase with Greenland (NH) temperature and monsoon intensity increases. The sources of methane variations can be estimated using the interpolar gradient (for the last climatic cycle, using Greenland-Antarctic ice core differences after age scale synchronization) and also using stable isotopes of carbon and hydrogen of methane. The data rule out methane hydrates as a major contributor to (i) glacial-interglacial variations during the last deglaciation, and (ii) millennial methane increases that occur in phase with Greenland temperature abrupt even...

Full article: http://dotearth.blogs.nytimes.com/2011/12/28/more-views-o...

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More Views on Climate Risk and Arctic Methane

dotearth.blogs.nytimes.com 28 Dec '11, 6pm

We have 800,000 years of methane records from the Antarctic EPICA Dome C ice core [link to relevant paper ]. The highest v...

Dot Earth Blog: Leaders of Arctic Methane Proje...

dotearth.blogs.nytimes.com 27 Dec '11, 6pm

We would first note that we have never stated that the reason for the currently observed methane emissions were due to rec...

Leaders of Arctic Methane Project Clarify Clima...

dotearth.blogs.nytimes.com 27 Dec '11, 6pm

We would first note that we have never stated that the reason for the currently observed methane emissions were due to rec...

Leaders of Arctic Methane Project Clarify Clima...

dotearth.blogs.nytimes.com 27 Dec '11, 5pm

We would first note that we have never stated that the reason for the currently observed methane emissions were due to rec...

Green Blog: The Puzzle of Rising Methane

green.blogs.nytimes.com 29 Dec '11, 12pm

Josh Haner/The New York Times Methane hot spots on a lake outside Fairbanks, Alaska. In an article the other day about tha...

Green Blog: The Puzzle of Rising Methane

green.blogs.nytimes.com 29 Dec '11, 12pm

Josh Haner/The New York Times Methane hot spots on a lake outside Fairbanks, Alaska. In an article the other day about tha...

The Puzzle of Rising Methane

green.blogs.nytimes.com 29 Dec '11, 12pm

Josh Haner/The New York Times Methane hot spots on a lake outside Fairbanks, Alaska. In an article the other day about tha...

Dot Earth Blog: A Warm Update to a Chilly Arcti...

dotearth.blogs.nytimes.com 29 Dec '11, 2pm

By 2050 or so, the human population is expected to reach nine billion, essentially adding two Chinas to the number of peop...

Arctic Methane: Is Catastrophe Imminent?

green.blogs.nytimes.com 20 Dec '11, 5pm

Josh Haner/The New York Times Methane bubbling up from beneath a lake bed near Fairbanks, Alaska. In my article over the w...

Green Blog: Arctic Methane: Is Catastrophe Immi...

green.blogs.nytimes.com 20 Dec '11, 5pm

Arctic Methane: Is Catastrophe Imminent? By JUSTIN GILLIS Josh Haner/The New York Times Methane bubbling up from beneath a...

Dot Earth Blog: 'Much Ado About Methane'

dotearth.blogs.nytimes.com 04 Jan '12, 10pm

The possibility of a catastrophic release is of course what gives methane its power over the imagination (of journalists i...

A Warm Update to a Chilly Arctic Ballad

dotearth.blogs.nytimes.com 29 Dec '11, 2pm

By 2050 or so, the human population is expected to reach nine billion, essentially adding two Chinas to the number of peop...

An Arctic methane worst-case scenario

realclimate.org 07 Jan '12, 1pm

Let’s suppose that the Arctic started to degas methane 100 times faster than it is today. I just made that number up tryin...

Should We Fear the Methane Time Bomb?

Should We Fear the Methane Time Bomb?

globalwarming.org 29 Dec '11, 11pm

Radiocarbon-dated macrofossils are used to document Holocene treeline history across northern Russia (including Siberia). ...

Climate & Solar Changes

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planetsave.com 26 Dec '11, 3pm

global warming has increased tremendously as solar activity has decreased (more on that in climate scientist Dr Michael Ma...