Three excellent posts at The Hockey Shtick are well worth reading:
Semi-retired physicist Dr. Daniel M. Sweger has been a research scientist at the National Institute of Standards and Technology, where he was active in a variety of research areas, including cryogenic thermometry, solid state and nuclear physics, and molecular spectroscopy.Dr. Sweger’s new paper, Earth’s Climate Engine (PDF), finds that if carbon dioxide [have] any effect on climate, it must be negligible. Instead, he finds on the basis of data and theory that water vapour is the dominant influence on climate, and its influence is the opposite of that assumed by the IPCC climate computer models.
Patrick Moore, a co-founder of Greenpeace and author of the new book, Confessions of a Greenpeace Dropout: The Making of a Sensible Environmentalist, states [...] “we do not have any scientific proof that we are the cause of global warming.” Moore also explains how the green movement has been co-opted by the political left and has come to support policies which are harmful for the environment and humanity.
What is arguably the most important reason to doubt global warming can be explained in plain English. [This article is also available here.]By Douglas J. Keenan WSJ.comFor years, some researchers have argued that the evidence for global warming is not nearly as strong as has been officially claimed. The details of the arguments are often technical. As a result, policy makers and other people outside the debate have relied on the pronouncements of a group of climate scientists. I think that is unnecessary. I believe that what is arguably the most important reason to doubt global warming can be explained in terms that most people can understand.