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.
Here is a transcript of the testimony, he appears to be referring to...
http://climatechange.procon.org/sourcefiles/1988_Hansen_Sena...
Having read it twice, I'm not sure exactly which "predictions" he is referring to.
John Taylor, according to his Wikipedia article is "an environmental activist and policy analyst", and apparently more than happy to shill for either side.
Criticism of him from some random link on the second page of Google:
http://consultingbyrpm.com/blog/2017/04/is-jerry-taylor-doin...
No matter your opinion on the topic, this guy certainly seems less than credible.