| Global warming calculations have been too optimistic, and the sea level round the globe is likely to rise a full metre this century, two senior German scientists warned Wednesday.Hans Joachim Schellnhuber, who heads the Potsdam Institute for Research on Global Warming Effects and Jochem Marotzke, a leading meteorologist, said UN-backed data on climate change, predicting a rise of 18 to 59 centimetres, was out of date. |
