More lobbyists for the controversial technology were present this year, despite debate about its viability

At least 480 lobbyists working on carbon capture and storage (CCS) have been granted access to the UN climate summit, known as Cop29, the Guardian can reveal.

That is five more CCS lobbyists than were present at last year’s climate talks, despite the overall number of participants shrinking significantly from about 85,000 to about 70,000.