Shocker: study finds global warming may be net beneficial for the global economy | Watts Up With That?

Shocker: study finds global warming may be net beneficial for the global economy | Watts Up With That?
"...What the authors have done is used one the climate models (the FUND model) to look ahead at the impacts warming would have on other economic sectors besides energy. 
...What they found is surprising; the overall economic impact of 3.0°C global warming would be beneficial nor just for the United States, but the entire global economy.
They write in the introduction:
"...the projected negative impact seems to be at odds with empirical data.
If this paper’s findings from the empirical energy consumption data are correct, and if the impact functions for the non-energy sectors are correct, then the overall economic impact of global warming would be beneficial. 
If true, the implications for climate policy are substantial..."
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