A new study by the Arctic Monitoring and Assessment Program estimates that the sea will rise by 0.5 to 1.5 meters by 2100, threatening coastal cities and flooding island nations. This is double the predicted rise estimated by the UN’s Intergovernmental Panel on climate Change (IPCC) in 2007, which did not incorporate sea level rise due to the melting of Greenland and Antarctica’s ice sheets.
Most surprisingly, the study found that discharge from Greenland had increased by 30 percent over the last decade: jumping from 330 billion giga tons in 1995 to 430 billion giga tons in 2005.
“We know that the Arctic has warmed enormously over the past 50 years and that the
temperatures over Greenland have increased by more than twice the global average.
Despite these observations, it is deeply surprising and worrying to see the pace of the
changes in the Greenland Ice Sheet”, lead author, Professor Dorthe Dahl-Jensen, University of Copenhagen said in a press release.
The study highlights the importance of continuing research on melting ice in Greenland.
“Greenland’s Ice Sheet is the single largest body of freshwater ice in the northern hemisphere. It contains around 3 million km of ice and, if it were to melt completely, this would cause global sea level to rise by roughly 7 meters […] Already now we are seeing how the areas experiencing surface melt are expanding northwards and that the periods of melt in southern Greenland are getting longer. The development in the last decade has taken scientists by surprise and it is still uncertain how the ice will react to future climate change. Therefore, it is essential to intensify the ice sheet research,” explains Dorthe Dahl-Jensen.
(12/09/2009) Poor island nations threatened by rising seas should wait for money through trickle-down economics, according to the founder of the US Competitive Enterprise Institute. The Washington-based free-market think tank believes that curbing greenhouse gas emissionss to combat climate change will be too costly to the US and global economies.
(12/09/2009) According to the Global Climate Risk Index, Bangladesh is the most vulnerable nation to extreme weather events, which many scientists say are being exacerbated by climate change. From 1990 to 2008, Bangladesh has lost 8,241 lives on average every year due to natural disasters. In addition, rising sea levels also threaten millions of Bangladeshis.
(09/23/2009) Resaerchers examining 43 million satellite measurements of Antarctica’s thinning ice sheets and 7 million of Greenland’s, show that the ice is melting faster than expected. Published in Nature the research is the most comprehensive picture to date of the melting glaciers, allowing scientists to better predict how sea levels may rise.