Gore wows Poznan, calls for 350 ppm target
December 12th, 2008 by Jim JustWarning that the survival of human civilization is at risk, Al Gore exhorted delegates at the international climate to overcome the paralysis that has prevented us from acting and focus clearly and unblinkingly on the climate crisis – and to aim for a new target of 350 parts per million co2.
Even a goal of 450 parts per million, which seems so difficult today, is inadequate. [We] need to toughen that goal to 350 parts per million.
Gore said that old targets for fighting global warming have been made obsolete by new science.
For the science behind the 350 ppm target see the study by Hansen et al, “Target Atmospheric CO2: Where Should Humanity Aim?” in The Open Atmospheric Science Journal.