Scientists seek better way to present climate reports

WASHINGTON (AP) - A steady drip of unsettling errors is exposing what scientists are calling "the weaker link" in the Nobel Peace Prize-winning series of international reports on global warming.

The flaws - and the erosion they've caused in public confidence - have some scientists calling for drastic changes in how future United Nations climate reports are done. A push for reform being published in Thursday's issue of a prestigious scientific journal comes on top of a growing clamor for the resignation of the chairman of the Intergovernmental Panel on Climate Change.

The work of the climate change panel, or IPCC, is often portrayed as one massive tome. But it really is four separate reports on different aspects of global warming, written months apart by distinct groups of scientists.

No errors have surfaced in the first and most well-known of the reports, which said the physics of a warming atmosphere and rising seas is man-made and incontrovertible. So far, four mistakes have been discovered in the second report, which attempts to translate what global warming might mean to daily lives around the world.

"A lot of stuff in there was just not very good," said Kevin Trenberth, head of climate analysis at the National Center for Atmospheric Research and a lead author of the first report. "A chronic problem is that on the whole area of impacts, getting into the realm of social science, it is a softer science. The facts are not as good."

In November, stolen private e-mails from a British university climate center embarrassed a number of scientists for their efforts to stonewall climate skeptics.