This Is What Global Temperature Could Look Like in 2100, According to NASA | Video | TheBlaze.com
Well, the best physical models we have for climate predictions are still crap. None of them - NONE - even approach today's climate. They're all WAY off.
so I guess the surface temperatures in 2100 could be 6 degrees hotter...OR they could be cooler if current model predictions are used.
That's the thing about predicting the far off future. Not many people to remember the prediction to report on its accuracy.