Posts tagged as:

Arctic

Siberian seabed methane: first numbers

by Gareth 5 March 2010

The latest estimate of methane release from the shallow seas off the north coast of Russia — the East Siberian Arctic Shelf (ESAS) — suggests that around 8 teragrams per year (1Tg = 1 million tonnes) of the gas are reaching the atmosphere. This is equivalent to previous estimates of total methane release from all [...]

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Methane rise continues

by Bryan Walker 23 February 2010

More cautionary news on rising methane levels is reported in yesterday’s Independent. Two leading experts on CH4 in the atmosphere, Euan Nisbet and Ed Dlugokencky, were due to reveal at a conference that, after a decade of near-zero growth, “globally averaged atmospheric methane increased by [approximately] 7ppb (parts per billion) per year during 2007 and [...]

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Oops, he did it again

by Gareth 8 January 2010

It pays to beware of leaving hostages to fortune: saying or doing something that might cause you some embarrassment in the future. There’s a very fine example in this recent blog post by Ian Wishart, titled “Top 10 global warming myths exposed“. It takes the form of a piece Wishart has submitted to the Coromandel [...]

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Siberian Shelf methane increased in 2009

by Gareth 8 January 2010

Methane release from the permafrost and hydrates under the East Siberian Shelf in autumn 2009 was the highest ever recorded, the leader of the International Siberian Shelf Study (ISSS), Igor Semiletov, has told the BBC. The results of last autumn’s research cruises are being prepared for publication in the near future. The BBC also quotes [...]

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More than a number

by Gareth 10 December 2009

This video was embedded using the YouTuber plugin by Roy Tanck. Adobe Flash Player is required to view the video.
If you want to know what’s happening on a stockmarket, the first place to look is at the relevant index — the Footsie (FTSE) for the London Stock Exchange, or the Dow Jones for Wall Street. [...]

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Marvellous distempered: the Copenhagen diagnosis

by Gareth 25 November 2009

The Copenhagen climate conference (COP15) opens its doors in a little under two weeks. To update participants on the science of climate a new assessment report, The Copenhagen Diagnosis, was released yesterday, and it makes grim reading. Designed to inform “a target readership of policy-makers, stakeholders, the media and the broader public” about the evidence [...]

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A beginner’s guide to the importance of Arctic sea ice

by Gareth 7 October 2009

This video was embedded using the YouTuber plugin by Roy Tanck. Adobe Flash Player is required to view the video.
In this beginner’s guide Tom Wagner, NASA’s cryosphere programme manager, outlines why studying Arctic sea ice is important, illustrating his talk with some great graphics. Meanwhile, the NSIDC has announced the final figures for September’s sea [...]

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Arctic takes a Turney for the worse

by Bryan Walker 25 September 2009

British geologist Chris Turney is just back from fieldwork in Svalbard, the island archipelago situated halfway between Norway and the North Pole. He has written about it in his popular science blog, under the title A Warning From the North. I’ll draw attention to some of his main points here, but first a reminder [...]

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Third

by Gareth 18 September 2009

The National Snow and Ice Data Centre announced today that this year’s Arctic sea ice minimum extent was likely to have been reached on September 12. It’s the third lowest minimum in the record, behind 2007 and 2008. The image at left shows this year in white, compared with 2007 in darker colours. From the [...]

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Titanic days

by Gareth 11 September 2009

Awesome (defined as extremely impressive or daunting; inspiring great admiration, apprehension, or fear) time-lapse pictures of the calving face of the great glacier at Ilulisat, Greenland pouring ice into the ocean — the single biggest ice discharge of any northern hemisphere glacier. Greenlanders reckon this is where the iceberg that sank the Titanic originated. The [...]

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