Variations of the Earth's surface temperature for the past 100 millions years
The global average surface temperature has increased over the 20th century by about 0.6 degrees Celsius. This increase in temperature is likely to have been the largest for any century in the last 1000 years.
Year: 2005
From collection: Vital Climate Change Graphics Update
Cartographer: Robert Barnes, UNEP/GRID-Arendal