Climate Monitoring,  National Climatic Data Center, NOAA (National Oceanic and Atmospheric Administration): the #1 source for recordkeeping.
- GISS (Goddard Institute for Space Studies) Surface Temperature Analysis,  NASA (National Aeronautics and Space Administration).
- Met Office,  the UK's National Weather Service. Dec. 8, 2009 press release, "Global-average Temperature Data Released." 
- "Statisticians Reject Global Cooling,"  AP via MSNBC.com, Oct. 26, 2009 by SEJ member Seth Borenstein.