(10 Nov 2006)

#4 - Climate change special: State of denial

Fred Pearce, New Scientist

KEVIN TRENBERTH reckons he is a marked man. He has argued that last year's devastating Atlantic hurricane season, which spawned hurricane Katrina, was linked to global warming. For the many politicians and minority of scientists who insist there is no evidence for any such link, Trenberth's views are unacceptable and some have called for him step down from an international panel studying climate change. "The attacks on me are clearly designed to get me fired or to resign," says Trenberth.

The attacks fit a familiar pattern. Sceptics have also set their sights on scientists who have spoken out about the accelerating meltdown of the ice sheets in Greenland and Antarctica and the thawing of the planet's permafrost. These concerns will be addressed in the next report by the Intergovernmental Panel on Climate Change (IPCC), the global organisation created by the UN in 1988 to assess the risks of human-induced climate change. Every time one of these assessments is released, about once every five years, some of the American scientists who have played a part in producing it become the targets of concerted attacks apparently designed to bring down their reputations and careers. At stake is the credibility of scientists who fear our planet is hurtling towards disaster and want to warn the public in the US and beyond.

So when the next IPCC report is released in February 2007, who will be the targets and why? When New Scientist spoke to researchers on both sides of the climate divide it became clear that they are ready for a showdown. If the acrimony were to become so intense that American scientists were forced to stop helping in the preparation of IPCC reports, it could seriously dent the organisation and rob the world of some significant voices in the climate change debate.

posted on ClimateConcern