New Scientist: Runaway warming of the Arctic threatens to spread climate havoc across the globe in the coming decades, according to a new study by the environment group WWF. But has the process already begun? Climate scientists meeting at the World Climate Conference in Geneva, Switzerland, where the report was launched today, are in two minds. Some reckon the WWF report may understate future events. The report’s author, climate adviser Martin Sommerkorn, reckons 90 per cent of the Arctic’s surface …