Rich countries must do more to help developing nations cut carbon emissions, Boris Johnson will tell other world leaders at a high-level gathering in New York.
The prime minister will be hosting the meeting on climate change with UN secretary general Antonio Guterres.
It is understood Mr Johnson is likely to focus on coal, cash support, cars and trees, which soak up carbon dioxide.
The prime minister is also expected to discuss global warming with US President Joe Biden in a meeting at the White House in Washington.
Presumably they all cycled to New York...
But of course they didn't, they were wafted there in luxury and security via the essential agency of fossil fuels. Oh well - it would be interesting to listen to Boris having a discussion on global warming with Joe Biden. Interesting in a ghoulish sense.