Various: Global warming could cripple winter sports and winter tourism in Canada, according to a report published Monday by the David Suzuki Foundation. “If heat-trapping greenhouse gas emissions are not significantly cut, global warming stands to wipe out more than half of Canada’s ski season later this century with few exceptions,” said the study. Entitled On Thin Ice, it was released Monday in Vancouver on the opening day of the 8th annual world conference on sport and the …