More correct would be to say, at the time (2006), Lomborg was a denier. He only recently turned around (although first by saying that climate change is not a serious problem), which is to his credit. Still in retrospect, people shouldn't have listened to him, he was wrong.
This is false. The introduction to the section on climate change in The Skeptical Environmentalist (published in 2001) states "This chapter accepts the reality of man-made global warming" (p259).
