Globally, temperatures have risen by 0.6°C in the past century. The 1990s included seven of the ten warmest years on record (including the hottest). Extreme weather from devastating floods, extensive coral bleaching and severe storms are all blamed on global warming.
Experience in the UK reflects what is happening globally. Four of the five warmest years in the past three centuries have occurred in the 1990s. 2006 was warmest year on record. October 2001 was the wettest month since records began.
Sea levels in the southeast are rising by 1·5 cm per decade. Spring is arriving earlier. Repeating dry summers followed by flood-damaging storms have led to increased insurance claims.