Global warming

Associated Press
In this Aug. 30, 2005 file photo, the Louisiana Superdome in New Orleans is seen in this aerial view, which was damaged by Hurricane Katrina, sits surrounded by floodwaters.  Extreme storms, droughts and heat waves are getting so much worse because global warming that the world has to prepare for an unprecedented onslaught of deadly and costly weather disaster, an international panel of experts says.  (AP Photo/David J. Phillip, File)

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Global warming is leading to such severe storms, droughts and heat waves that nations should prepare for an unprecedented onslaught of deadly and costly weather disasters, an international panel of climate scientists said in a report issued earlier this year.

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