8 Updates
Siberian thaw likely to worsen global warming
Photo Credit: MARWAN NAAMANI, Getty Images

Siberian thaw likely to worsen global warming

Feb 22 2013, 3:40am CST | by

London, Feb 22 (IANS) A rise of 1.5 degrees Celsius in mercury is likely to melt the permanently frozen ground over a large chunk of Siberia, possibly releasing gigatonnes of carbon from soils that could aggravate global warming, says a study.

London, Feb 22 — A rise of 1.5 degrees Celsius in mercury is likely to melt the permanently frozen ground over a large chunk of Siberia, possibly releasing gigatonnes of carbon from soils that could...

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1 year ago

Siberian thaw likely to worsen global warming

Feb 22 2013, 3:40am CST | by

London, Feb 22 (IANS) A rise of 1.5 degrees Celsius in mercury is likely to melt the permanently frozen ground over a large chunk of Siberia, possibly releasing gigatonnes of carbon from soils that could aggravate global warming, says a study.

London, Feb 22 — A rise of 1.5 degrees Celsius in mercury is likely to melt the permanently frozen ground over a large chunk of Siberia, possibly releasing gigatonnes of carbon from soils that could aggravate global warming, says a study.

"As permafrost covers 24 percent of the land surface of the northern hemisphere, significant thawing could affect vast areas and release gigatonnes of carbon," said Anton Vaks from the Oxford department of earth sciences, who led the research.

"For instance, natural gas facilities in the region, as well as power lines, roads, railways and buildings are all built on permafrost and are vulnerable to thawing. Such a thaw could damage this infrastructure with obvious economic implications," adds Vaks, the journal Science Express reports.

The data comes from a team of researchers from Britain, Russia, Mongolia and Switzerland studying stalactites and stalagmites from caves located along the "permafrost frontier", where ground begins to be permanently frozen in a layer tens to hundreds of metres thick, according to an Oxford statement.

"The stalactites and stalagmites from these caves are a way of looking back in time to see the effects of warm periods similar to our modern climate," says Vaks.

Because stalactites and stalagmites only grow when liquid rainwater and snow melt drips into the caves, these formations record 500,000 years of changing permafrost conditions, including warmer periods similar to the climate today.

Records from a particularly warm period around 400,000 years ago suggest that global warming of 1.5 degrees Celsius compared to the present is enough to cause substantial thawing of permafrost far north from its present-day southern limit.

The team used radiometric dating techniques to date the growth of cave formations (stalactites and stalagmites).

Data from the Ledyanaya Lenskaya Cave - near Russia's Lensk town - in the coldest region showed that the only period when stalactite growth took place occurred about 400,000 years ago, during a period with a global temperature 1.5 degrees higher than today.

IANS

Source: IANS

 
Update
8

10 hours ago

Climate Alarmists Never Quit!

Jul 29 2014 11:38am CDT | Source: Canada Free Press

In the same way Americans are discovering that the Cold War that was waged from the end of World War Two until the collapse of the Soviet Union in 1991 is not over, Americans continue to be subjected to the endless, massive, global campaign to foist the hoax of global warming—now called climate change—on ...
Source: Canada Free Press   Full article at: Canada Free Press
 

 
Update
7

10 hours ago

Climate Alarmists Never Quit!

Jul 29 2014 11:38am CDT | Source: Canada Free Press

In the same way Americans are discovering that the Cold War that was waged from the end of World War Two until the collapse of the Soviet Union in 1991 is not over, Americans continue to be subjected to the endless, massive, global campaign to foist the hoax of global warming—now called climate change—on everyone. ...
Source: Canada Free Press   Full article at: Canada Free Press
 

 
Update
6

3 weeks ago

Economic Scene: Blueprints for Taming the Climate Crisis

Jul 8 2014 5:38pm CDT | Source: NewYorkTimes-Business Day

A report explores the technological paths available for the 15 main economies to maintain growth and cut carbon emissions enou ...
Source: NewYorkTimes-Business Day   Full article at: NewYorkTimes-Business Day
 

 
Update
5

6 weeks ago

UK Study Debunks Obama’s Science Advisory Climate Theory

Jun 17 2014 11:21am CDT | Source: Canada Free Press

A top British expert has come out with new research flatly contradicting the idea that extremely cold winters in North America – like the one just past – will become more frequent due to global warming. This new analysis disagrees completely with the assessment of President Obama ...
Source: Canada Free Press   Full article at: Canada Free Press
 

 
Update
4

6 weeks ago

UK Study Debunks Obama’s Science Advisory Climate Theory

Jun 17 2014 11:21am CDT | Source: Canada Free Press

A top British expert has come out with new research flatly contradicting the idea that extremely cold winters in North America – like the one just past – will become more frequent due to global warming. This new analysis disagrees completely with the assessment of President Obama’s science ...
Source: Canada Free Press   Full article at: Canada Free Press
 

 
Update
2

7 weeks ago

 
Update
1

8 weeks ago

80% claim city temperatures have risen: TERI survey

Jun 3 2014 9:41am CDT | Source: Business Today

Around 90 per cent of respondents acknowledged that global warming was a rea ...
Source: Business Today   Full article at: Business Today
 

 

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<a href="/latest_stories/all/all/8" rel="author">Luigi Lugmayr</a>
Luigi is the founding Chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.

 

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