IPCC calls for major shift to renewables to cut emissions



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Emissions of greenhouse gases grew at a faster rate over the decade from 2000 to 2010 than they did over the previous three decades, reaching the highest levels in human history, despite efforts to limit them, according to the last installment of the latest report from the Intergovernmental Panel on Climate Change, released Sunday.

This final installment, focused on mitigating climate change, says that in order to keep warming under the 2°C (3.6°F) thresholdagreed on by the world’s governments at a 2009 meeting in Copenhagen, greenhouse gas emissions in 2050 will have to be 40 to 70 percent lower than what they were in 2010. By the end of the century, they will need to be at zero, or could possibly even require taking carbon dioxide out of the atmosphere, a controversial proposition.