CBC News - Technology & Science - Warming from today's CO2 emitters modest: study

Today's carbon-spewing power plants and vehicles won't raise the global temperature to dangerous levels by 2060 even if they're allowed to keep operating to the end of their normal lifespans, a new study predicts.
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Still, Damon Matthews, a climate scientist at Concordia University in Montreal, who co-authored the paper, feels the conclusions are optimistic because they counter the widely held belief that major climate change is already inevitable.

"Yes, climate change is inevitable, but that's because of the decisions that we're making," he said Thursday. "What types of technology we're currently building [are] going to make a big difference to the state of the future climate."
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In the meantime, Davis cautioned against any policies that would encourage the lifetimes of existing infrastructure to be extended.