By Daniel Martin, The Daily Mail Online
The world's leading climate change scientists have been caught out making unfounded claims about global warming for the second time in just over a week.
Experts appointed by the United Nations said rising temperatures were to blame for an increase in the number and severity of natural disasters such as hurricanes and floods.
But it has emerged that the Intergovernmental Panel on Climate Change based the statement, made in 2007, on an unpublished report that had not been properly reviewed by other scientists.





