Climate change 'more extreme' than feared
The relatively recent 2007 report from the Intergovernmental Panel on Climate Change is said by the agency to be already out of date.
'Extreme weather events' such as the hot summer of 2003, which caused an extra 35,000 deaths across southern Europe from heat stress and poor air quality, will happen more frequently.
Britain and the North Sea area will be hit more often by violent cyclones and the predicted rise in sea level will double to more than a metre, putting vast coastal areas at risk from flooding.
The bleak report from WWF - formerly the World Wildlife Fund - also predicts crops failures and the collapse of eco systems on both land and sea.
And it calls on the EU to set an example to the rest of the world by agreeing a package of challenging targets for cutting greenhouse gas emissions to tackle the consequences of climate change and to keep any increase in global temperatures below 2C.