Climate change is happening much faster than the world's best scientists predicted and will wreak havoc unless action is taken on a global scale, a new report warns.
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.
The report says that the 2007 report from the Intergovernmental Panel on Climate Change (IPCC) - a study of global warming by 4,000 scientists from more than 150 countries which alerted the world to the possible consequences of global warming - is now out of date. WWF's report, Climate Change: Faster, stronger, sooner, has updated all the scientific data and concluded that global warming is accelerating far beyond the IPCC's forecasts.
Find out more about ITU's actvities on climate change