GCR News Summary September 2013
The Earth and the Moon as seen from Voyager 1 image courtesy of NASA.
The Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report concluded after reviewing 9,200 peer-reviewed studies that there’s at least a 95% chance that global warming is primarily caused by human activities. The IPCC said in its 2007 report that there was a 90% chance global warming was caused by humans, but alternate explanations for climate change have been ruled out since then. The IPCC found that the global …
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