"More than a 2-degree increase should be unimaginable. Yet to stop at 2 degrees, global emissions have to peak in 2016. The Carbon Tracker organization has examined fossil-fuel investments around the world (including 1,200 new coal plants) and determined that they would lead to a 6-degree world.
"The current mode of nibbling around the edges is pretty much pointless."
The Climate Change Endgame - Thomas E. Lovejoy, New York Times