Wednesday, March 30, 2016

Greenhouse gas emissions could see sea levels rise more than 13 meters by 2500


A recent study has warned that, contrary to earlier predictions, sea levels could rise nearly twice as much by the end of this century in case carbon dioxide emissions continue unabated. The net result could be the devastation of coastal communities around the globe and no one would be spared.
These startling findings paint a more grim picture than current consensus predictions because, the suggestion was that the level of seas could rise by just under a meter at most by the year 2100.
This has been reported in nzherald.co.nz dated 31 March 2016.
The scientists used sophisticated computer models in order to decipher a longstanding riddle about Antarctica namely, how did it surrender so much ice during previous warm periods?
The scientists discovered that similar conditions could, in future, give rise to monumental and irreversible increases in sea levels. With the continuous emission of high levels of greenhouse gas, the oceans could rise by close to two meters in total (more than six feet) by the end of the century.
And, the melting of ice on Antarctica alone could cause seas to rise more than 13 meters (42 feet) by 2500. This grim picture of sea level rise, had relied on a "minimal contribution from Antarctica" - that is the finding of the study carried out by Rob DeConto of University of Massachusetts, Amherst and David Pollard of Penn State University.
As Eric Rignot, an expert on Antarctica's ice sheet and an earth sciences professor at the University of California, Irvine, has said - 'we are not there yet . . . [But] with the current rate of emissions, we are heading that way.' He was not involved in the study.


Image courtesy wikimediacommons.org

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