Climate models fail to 'predict' US droughts

摘要

"This would be a fine country if it only had water," observes a settler look-ing at the barren west Texas plains. "So would Hell" replies a despairing farmer. That old Texas joke probably originated in the 1950s, when the state was baked by its most relentless drought in recorded history. Last year, rain kept clear of the region again, and scientists predict that the entire North American southwest will become increasingly drought-prone as climate change proceeds.