Deadly Louisiana deluge had a major climate change assist, study finds

The 7.1 trillion gallons of torrential rainfall that a storm dumped on Louisiana in August, leading to a flooding disaster that killed at least 13 people and caused more than $1 billion in damage, had a direct link to human-caused global warming, a new study finds. 
In short, while these events are still rare — on the order of about once every 1,000 years at the local level — they used to be far more infrequent, the study, released Wednesday, concludes.
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