Fight Over Global Warming Heats Up - WSJ.com
Two years ago, a United Nations scientific panel won the Nobel Peace Prize after concluding that global warming is "unequivocal" and is "very likely" caused by man.
Then came a development unforeseen by the U.N.'s Intergovernmental Panel on Climate Change, or IPCC: Data suggested that Earth's temperature was beginning to drop.
Such disagreements aren't unusual in a nascent science. "I don't think anybody is surprised that we're going to get one model that suggests it's going to cool and another that suggests it's going to warm," says Vicky Pope, a scientist at the Hadley Center, the U.K. institute where the research for the British paper was done. "That's consistent with where we are with the science."