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UN scientists call for shift in energy sources in IPCC climate report




Giant tabular icebergs surrounded by ice floe drift in Vincennes Bay in the Australian Antarctic Territory on January 11, 2008.
Giant tabular icebergs surrounded by ice floe drift in Vincennes Bay in the Australian Antarctic Territory on January 11, 2008.
Torsten BlackwoodGetty Images

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The world's scientists say time is running out to avert the most dire effects of climate change.

The latest report by the UN's climate change panel, released Sunday, calls for lowering global greenhouse gas emissions 40-70 percent by the end of the century. A big part of that is focusing on what energy sources we use and how much we consume.

For more, we're joined by Cara Horowitz, co-executive director at the Emmett Institute on Climate Change and the Environment at UCLA.

Some highlights of the report: