Global warming

Associated Press
This undated handout photo provided by the Butterfly Conservation shows a Comma butterfly. A new study in Science shows that species across the world are moving further away from the equator and higher in elevation and doing so faster than before because of global warming. This is a photograph of a comma butterfly, which has moved north 135 miles in just 21 years in Great Britain. (AP Photo/Butterfly Conservation, Jim Asher)

View gallery

35 photos

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.

View Comments (0)