claim: The IPCC, the Intergovernmental Panel on Climate Change, which is sort of the voice of the consensus, concedes that there has been no increase in extreme weather events.
evidence: Broadcast regulator Ofcom upheld a complaint by prominent scientist Brian Cox and Jim Al-Khalili and the UK‘s Green Party about an interview on the BBC‘s flagship cultural affairs radio show, the Today programme. On the programme, Lawson said "all the experts say there hasn’t been" an increase in extreme weather events, and that the Intergovernmental Panel on Climate Change "concedes" this, and that, according to official figures, "during this past 10 years […] average world temperature has slightly declined," the Guardian reported.22Mark Sweney. "BBC Radio 4 broke accuracy rules in Nigel Lawson climate change interview," The Guardian, April 9, 2018. Archived April 14, 2018. Archive URL: https://archive.li/xeMeB [...] Lawson: For example, he said that, er, there had been a growing increase, which had been continuing, in the extreme weather events. There hasn’t been. All the experts say there haven’t been. Extreme weather events have always happened. They come and go. And some kinds of extreme weather events of a particular time increase, whereas others, like tropical storms, diminish…