Climate Panel Says Upper Limit on Emissions Is Nearing

NY Times 9/27/13 -- "STOCKHOLM — For the first time, the world’s top climate scientists on Friday formally embraced an upper limit on greenhouse gases while warning that it is likely to be exceeded within decades if emissions continue at a brisk pace, underscoring the profound challenge humanity faces in bringing global warming under control.
A panel of experts appointed by the United Nations, unveiling its latest assessment of climate research, reinforced its earlier conclusions that global warming is real, that it is caused primarily if not exclusively by human emissions, and that it is likely to get substantially worse unless efforts to limit those emissions are rapidly accelerated."
http://www.nytimes.com/2013/09/28/science/global-climate-change-report.html?hp&_r=0