A team of scientists report to Congress warned that if temperatures rose 2-7 ° C, the entire Greenland ice sheet is disappearing from the world map, ice demise would cause global sea levels by 7 meters, then the world serious impact on other areas.
Pennsylvania State University earth sciences professor Richard (Richard ey), said last week a huge ice From the collapse of the Greenland Petermann glacier to leave, breaking the ice area the size of the equivalent of four Manhattan may be recorded in history away from the glacier has been the biggest collapse of a floating Iceland. He believes that this is to warn.
He added: “Over the next decade, a certain hour, we may be able to exist over to Greenland temperature critical point, if the temperature rose 2-7 ° C, means that Greenland’s ice sheet will die, and ice sheets will cause the demise of Global sea-level rise 7 meters, so thousands of miles away from the Arctic region will be seriously affected, then the same as the low-lying city of New Orleans will disappear. “
According to the National Geographic Web site and the “Daily Mail” reported that one of Greenland’s largest glaciers in the recent phenomenon of large-scale crack and fracture of ice the size of Manhattan, an area equivalent to 4, may be recorded in history since the collapse away from the glacier The maximum a floating Iceland.
According to reports, scientists announced on August 6, 5, a huge ice glacier from the Greenland Peterman from collapse, forming a 260 square kilometers of huge floating Iceland, the equivalent of four Manhattan size, water content to meet the United States 120 days of public water supply needs.
Petermann glacier is Greenland’s largest glaciers of two existing one, 1,000 km from the North Pole. 5 taken satellite images show, Petermann glacier 70 km long ice shelf has lost nearly 1 / 4, may be history, the largest ever recorded in a glacier crack. On a similar scale glacier crack occurred in 1962, as recorded missing, scientists can not determine the form of floating at the area of Iceland.
It is reported that Petermann glacier in the past two years has been cracking state. Experts said the ice shelf is a normal process of fracture at any time are Zaifa Sheng, but this time scale Que Xiang Fei Chang rare, it is not yet whether Renweizaocheng greenhouse Youguan, while in 2010 the first half of the temperature Queshidadao the highest in history.
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