Heat wave risk hovers over Paris Olympics

Scorching summer heat is hard to imagine now in mid-winter Paris, but in six months when the world's athletes arrive for the Olympics, another pounding heat wave would spell trouble for organizers.

Warming world dampening winter sports in Canada

Christmas was without snow, then temperatures seesawed throughout January in much of Canada, as the increasing effects of climate change drastically dampen the country's winter sports season.

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