There is more fuel for the climate change fire from the UK, today.
Two reports are linking an increase in flooding to a warming climate, the BBC reports.
In the second study, researchers from Canada and the UK looked at the increase in the frequency of extreme rainfall events documented across much of the Northern Hemisphere between 1950 and 2000.
There are variations from year to year and from place to place; but across the piece, intense downpours have become more common over the period.
The researchers suggest there is nothing that can explain this trend except the slow steady increase in temperatures caused by greenhouse gas emissions.
In the UK, another study said, the chance of flooding doubled with a warmer climate.