The president of COP28 in Dubai, Sultan Al Jaber, says there is "no science" indicating that a phase-out of fossil fuels is needed to restrict global heating to 1.5 degrees Celsius.
He says such a phase out of fossil fuels would not allow sustainable development "unless you want to take the world back into caves".
That's according to The Guardian, which says Al Jaber made the comments in ill-tempered responses to questions during an online event more than a week ago.
As well as running Cop28 in Dubai, Al Jaber is also the chief executive of the United Arab Emirates' state oil company, Adnoc, which many observers say is a serious conflict of interest.
Oil Change international global industry lead David Tong spoke to Corin Dann.
