In this post I discussed the subject. This article in the Toronto Star presents academic research that proves the point. The result should not surprise anyone with basic knowledge of physics and economics.
I noticed however that the research created a storm in the green blogosphere. There are so many paranoid posts on the topic that I'll just suggest browsing through this Google search.
Many among the posts that I've read show lack of understanding of basic concepts such as the difference between radiating heat and convection heat.
Although the people who wrote the posts demonstrate lack of expertise in physical and economic phenomena, they truly believe that they have something to say about environmental issues. Another example of Caplanian political irrationality?