Some instructive links on global warming (also climatology and climate change):

• The Royal Society.
  A guide to facts and fictions about climate change (PDF file here), April 2005.
  [Note on printing the PDF file: Since the document is formatted for A4 paper you will need to adjust margins when printing on 8.5x11 paper.]


• How to Talk to a Global Warming Sceptic assembled by Coby Beck


• Real Climate's page on The IPCC Fourth Assessment Summary for Policymakers : http://www.ipcc.ch/SPM2feb07.pdf


• Climate change: some basics by Jan Schloerer (last updated 21 Feb 2007, as of this writing)


• NASA Earth Observatory Reference Library


• Natural Variation of the climate system at Open Mind, a climate science blog by "Tamino"
  (a very good illustration and explanation of the concept of variance)


• The Discovery of Global Warming by Spencer Weart
  (also has a very nice page of links: Where to Find Other Information)

(last updated: 01 March 2007)