From my "Resources" page, an updated section on climate change:
Aliens Cause Global Warming and other speeches by Michael Crichton
Climate Audit (a blog by Steve McIntyre of the M&M project -- see below -- and a comprehensive resource for those interested about the science of global warming, as opposed to the religion of it)
Climate Change Chaos (two posts about alternative explanations of "global warming")
Climate Change 2007: Climate Change Impacts, Adaptation, and Vulnerabilities (IPCC's latest contribution to the scare about global warming)
Climate Patterns in Northern Fennoscandia during the Last Millenium (the present episode as a blip in Finnish temperature patterns dating back 7,640 years)
Clouding the Issue (the effect of the "Asian Brown Cloud" on "global warming")
Cool Heads Required (Spiked! survey article about climate change)
A Consensus about Consensus
Consensus, What Consensus? Among Climate Scientists the Debate Is Not Over
Cosmoclimatology: A New Theory Emerges (Henrik Svensmark's theory of climate change as being caused mainly by the level of cosmic radiation reaching Earth; supported by this article; criticized in Lockwood and Frohlich's paper, which is debunked here in a cached article that I have downloaded in case it disappears)
Datasets & Images (main page for NASA temperature data: U.S., northern hemisphere, various latitude bands, an global)
Falsification of the Atmospheric CO2 Effects within the Frame of Physics (in which two scientists explain that the so-called greenhouse effect violates the laws of physics)
Greenie Watch (a blog by John Ray in which he reprints articles debunking "warmism" and other enviro-nut causes)
Global Warming's Silver Lining
Heat Capacity, Time Constant, and Sensitivity of Earth's Climate System (a downward re-estimate of the likely change in Earth's temperature, summarized here by John Ray)
Heretical Thoughts about Science and Society (an essay by noted physicist Freeman Dyson, in which he factually and logically dissects global-warming alarmism)
The Iris Opens Again? (a post about research into the cyclical relationship between clouds, warming, and cooling)
Let's Be Honest about the Real Consensus
Let's Look on the Sunny Side (Timesonline article about the sun and global warming)
M&M Project Page (summaries of and links to scientific analyses that refute the "hockey stick" paradigm upon which the global-warming scare rests)
New Peer-Reviewed Scientific Studies Chill Global Warming Fears (annotated bibliography, released by the ranking minority member of the U.S. Senate Committee on Environment and Public Works)
Peter Huber And Mark Mills On Our Energy Future
A Report from the Global Warming Battlefield
Scientific Forecasts vs. Forecasts by Scientists (documentation of the fact that the climate models that support "warmism" based on opinion, not evidence)
Tellus More about Hurricanes (a post at World Climate Report about three journal articles on the relationship between "global warming" and hurricanes)
Trouble in Climate-Model Paradise (how climate models used to project warming trends significantly underestimate precipitation)