Key climate facts
Big changes in the atmosphereConcentrations of greenhouse gases are now higher than at any point in the past 800,000 years.
Hot decade
The ten warmest years on record have all been since 1990. In Europe, the August 2003 heatwave was probably the hottest for at least 500 years. Between 4 and 13 August, over 2000 people in the UK died as a result of the heat.
Big increase in flood victimsThe autumn and winter floods in 2000 in the UK were the worst for 270 years in some areas.