Preliminary data indicates that 2008 ties with 2001 as the eighth warmest year in history.
The analysis by the National Oceanographic and Atmospheric Administration (NOAA) looks at a number of measurements including:
- Global ground surface temperature
- Soil temperatures
- Ocean surface temperature
- Average snow coverage (decreased)
- Permafrost coverage
- Glacial ice melt
The top ten warmest years on record all fall in the the last 13 years.
Source: National Oceanic And Atmospheric Administration (2009, January 19). 2008 Global Temperature Ties As Eighth Warmest On Record. ScienceDaily. Retrieved January 19, 2009, from http://www.sciencedaily.com/releases/2009/01/090116163206.htm
Related sites: http://www.ens-newswire.com/ens/dec2008/2008-12-18-02.asp