Deadly weather in US could become the norm - environment - 03 May 2011 - New Scientist
...according to researchers, a confluence of seasonal oscillations in weather patterns, rather than climate change, is to blame. And growing populations mean that grim casualty figures from such events may become the norm.
"I don't think there's any way of proving climate change is responsible for the weather patterns this week and week before," says meteorologist Howard Bluestein, of the University of Oklahoma in Norman.
Tornadoes, floods and fires occur every year in America, and the outbreak of each this year is readily explained by short-term factors.
Climate change cannot be directly blamed for such outbreaks. And even as scientists' climate models have improved, the question of whether increasing global temperatures will change the frequency and severity of dangerous weather in the future remains open.
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