"Greenhouse gases thrust into the atmosphere by burning fossil fuels are warming Earth's surface more quickly than previously understood, according to new climate models set to replace those used in current UN projections, scientists said Tuesday.
By 2100, average temperatures could rise 6.5 to 7.0 degrees Celsius above pre-industrial levels if carbon emissions continue unabated, separate models from two leading research centres in France showed.
That is up to two degrees higher than the equivalent scenario in the Intergovernmental Panel for Climate Change's (IPCC) 2014 benchmark 5th Assessment Report.
The new calculations also suggest the Paris Agreement goals of capping global warming at "well below" two degrees, and 1.5C if possible, will be harder to reach, the scientists said."
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