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Stern, Nicholas 2009 A Blueprint for a Safer Planet

by Nicholas Stern 2009 Bodley Head ISBN 9781847920386 PBK 243 pages £16.99  (HBK)Author of Stern Report and senior economist adds weight to the arguments for tackling climate change.

Regretably he still states that CO2e emissions can be allowed that take levels to 500ppm, 550ppm, even 600ppm without tolerable consequences whereas James Hansen states that existing levels are already taking us beyond tipping points that will increase emissions from C stored in permafrost, forests, oceans etc.   Hansen estimates that we need to get CO2 back down to 350ppm: it is currently 386ppm (equivalent to CO2e at 460ppm).