MSNBCW All In With Chris Hayes April 23, 2014
complicated system of the human body and the difference between being 98.6 degrees and 102.6 degrees. adding just four degrees doesn't seem like a lot but if you're running a 102.6 fever, how are you feeling? what if it lasts for several weeks? for earth no one knows exactly what happens if we add more than 2 degrees celsius. but the consensus is it's much more than melting glaciers. it is bad. very bad. phrases like uninhabitable planet or civilization not existed in recognizable form start to enter the picture at the tail end of risk. now, here's where things get interesting. if we...