 Winter air temperatures over Antarctica have risen by more than 2C in the last 30 years, a new study shows. Research published in the US journal Science says the warming is seen across the whole of the continent and much of the Southern Ocean. The study questions the reliability of current climate models that fail to simulate the temperature rise. In addition, the scientists from the British Antarctic Survey (BAS) say the cause of the warming is not clear. It could be linked to increases in greenhouse gases in the atmosphere or natural variations in Antarctica's climate system. Scientists are keen to understand the change in temperatures over the continent as the region holds enough water in its ice to raise sea levels by 60 metres. ...
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