America’s huge drought was a freak of nature not caused by man-made global warming, a new government science study said.

CLIMATE change has likely intensified the monsoon rains that have triggered record floods in Australia’s Queensland state, scientists said yesterday, with several months of heavy rain and storms still to come.

A leading climate change scientist said today that hackers breaking into a university’s computer server and then posting documents online showed the "nasty politics of global warming".

Global warming may have made Hurricane Gustav slightly stronger and wetter, some scientists said today, but few were rushing to make a specific connection between climate change and stronger storms.

A top US government scientist has performed a U-turn on climate change, saying global warming is not responsible for the recent increase in Atlantic hurricanes.