Climate change catastrophe by degrees

Bob Watson rightly warns us to prepare for 4C global warming.
To avoid that, we must make drastic CO2 cuts now

Unfortunately, Professor Bob Watson is not speaking out of turn in telling the world to prepare for four degrees of global warming. “Mitigate for two degrees; adapt for four” has long been the catchphrase among climate negotiators and campaigners. Translated, that means: try to reduce emissions to stay below two degrees of warming, but also prepare for the worst.

[…] The problem with the “mitigate for two degrees; adapt for four” strategy is that it is doomed to fail. Yes, we should certainly prepare for the worst as far as possible

Guardian