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Climate Change Catastrophe by Degrees


#1

Climate Change Catastrophe by Degrees

Mark Lynas

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.


#2

It seems to be getting clearer that governments are 'Mitigating for two degrees; adapt for four' by planning to rely on geoengineering schemes at three degrees. The danger is that they will not aggressively pursue a two degree limit but will assume that it will inevitably surpassed. They will not make the hard choices in time to avert surpassing the two degree limit because they expect that geoengineering quick fixes will save the day.