Food and farming companies will claim agriculture is the solution to the climate crisis at the Brazil summit — even though food drives a third of global warming.

It is “outrageous” that the richest companies in the world are being allowed to use fossil fuels to power AI, campaigners say.

The ex-Conservative previously called climate change “one of the greatest challenges we face” and backed net zero.

Petrobras has co-opted social media stars who should be exposing its greenwashing, not taking part in it, critics say.