How a Professional Climate Change Denier Discovered the Lies and Decided to Fight for Science: JT: It started in the early 2000s. I was one of the climate skeptics who do battle on TV and I was doing a show with Joe Romm. On air, I said that, back in 1988, when climate scientist James Hansen testified in front of the Senate, he predicted we’d see a tremendous amount of warming. I argued it’d been more than a decade and we could now see by looking at the temperature record that he wasn’t accurate. After we got done with the program and were back in green room, getting the makeup taken off, Joe said to me, “Did you even read that testimony you’ve just talked about?” And when I told him it had been a while, he said “I’m daring you to go back and double check this.” He told me that some of Hansen’s projections were spot on. So I went back to my office and I re-read Hanson’s testimony. And Joe was correct. So I then I talked to the climate skeptics who had made this argument to me, and it turns out they had done so with full knowledge they were being misleading.
SL: So that was it? You changed your mind?
JT: It was more gradual. After that, I began to do more of that due diligence, and the more I did, the more I found that variations on this story kept arising again and again. Either the explanations for findings were dodgy, sketchy or misleading or the underlying science didn’t hold up. Eventually, I tried to get out of the science narratives that I had been trafficking in and just fell back on the economics. Because you can very well accept that climate change exists and still find arguments against climate action because the costs of doing something are so great.
SL: So that was it? You changed your mind?
JT: It was more gradual. After that, I began to do more of that due diligence, and the more I did, the more I found that variations on this story kept arising again and again. Either the explanations for findings were dodgy, sketchy or misleading or the underlying science didn’t hold up. Eventually, I tried to get out of the science narratives that I had been trafficking in and just fell back on the economics. Because you can very well accept that climate change exists and still find arguments against climate action because the costs of doing something are so great.