the sky is REALLY falling this time

The scariest scenario I've come across yet.  The author, unbelievably enough, holds the Milton Friedman chair in economics at the University of Chicago.

What if we really did 'Burn It All'?  'The use of all reserves and resources would lead to a total increase of 16.2 degrees. Today’s climate and planet would very likely be unrecognizable.'

http://www.nytimes.com/2015/04/09/upshot/if-we-dig-out-all-our-fossil-fuels-heres-how-hot-we-can-expect-it-to-get.html?smid=fb-share&_r=0&abt=0002&abg=0