Debunking Bloomberg’s ‘alarming’ climate graph: Are we really on track for 4°C global warming by 2100?

WUWT
David Burton has already done a wonderful deconstruction of Bloomberg’s absurd global warming attribution graph, by Eric Roston and Blacki Migliozzi, contrived from data by the notoriously unreliable NASA GISS, purporting to demonstrate that 20^th-century global warming was reely ’n’ truly all caused by our sins of emission, honest it was, guv’nor, cross me ’eart an’ ’ope to die.
What that graph really helps to indicate – though its fanatical originators would be horrified if they realized it – is just how little global warming we are likely to see this century, even if no one cuts emissions at all from now on and CO2 concentration continues inexorably to climb."