Nature & Environment
February 23, 2013 ·
35 comments
Image Credit: DmitrySA
The results from the study were obtained by investigating stalactites and stalagmites in caves where the frozen permafrost layers can be directly observed. By looking back at the history of the ice researchers were able to determine when it last thawed and what temperature would be needed for that to happen again.
Source: BBC News | Comments (35)
Warning over Siberian permafrost thaw
By T.K. RandallFebruary 23, 2013 ·
35 comments
Image Credit: DmitrySA
A new study suggests that if the temperatures rises another 1.5C the permafrost could melt completely.
Such an outcome could contribute to a runaway greenhouse effect with more than one trillion tons of carbon dioxide and methane expected to be released in to the atmosphere in the event that the permafrost does thaw out. A large number of roads, industries and power lines are also built on top of the permafrost meaning that the country's infrastructure could be severely impacted if it were to melt.The results from the study were obtained by investigating stalactites and stalagmites in caves where the frozen permafrost layers can be directly observed. By looking back at the history of the ice researchers were able to determine when it last thawed and what temperature would be needed for that to happen again.
Evidence from Siberian caves suggests that a global temperature rise of 1. 5C could see permafrost thaw over a large area of Siberia. A study shows that more than a trillion tonnes of the greenhouse gases CO2 and methane could be released into the atmosphere as a result.
Source: BBC News | Comments (35)
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