James Delingpole is one of several prominent climate change skeptics. They're all having a great time showing what bunkum these predictions about "dangerous climate change" are. But Delingpole is persuading more people than the others, I think.
There are a couple of reasons for this. Firstly, he's younger than most well known climate change skeptics (and looks younger than his years, too). That confounds warmists in the meeja, who repeatedly cast the climate change issue as a generational battle between whippersnappers who care deeply about the future of the planet and greedy old farts who don't give a rat's. When they see Delingpole younger folk who would usually be happy to go with the warmists' generational narrative experience a bit of cognitive dissonance and start looking into the whole thing anew. When they do that, they're much more likely to become skeptics.
Secondly, he's very witty and amusing. He has a knack for encapsulating the crazy desperation of the catastrophist fear mongers with humorous metaphors. Take the one that he uses quite late in this interview with Andrew Bolt. In it, he equates their attempts to outdo each other with a poker game. It's both very funny and bang on the money.