In case the world didn't understand the hypocrisy of - in the age of video conferencing - flying 25,000 people around the globe to attend COP26, the US President Joe Biden made it crystal clear by arriving in a cavalcade of some 20 huge vehicles, many of them flown in for the occasion.
Housing some of the COP26 officials were two massive diesel-powered cruise liners docked nearby. Many of the 'VIPs' were shuttled to the venue in EVs. So many EVs, in fact, that there weren't enough charging stations for them - a problem solved by rolling in diesel generators.
You can't make this stuff up.