Glasman was a keynote speaker at an event hosted by Together, whose leader has accused Keir Starmer of “destroying Britain”.

After MEPs voted to gut Europe’s flagship climate transparency law, concerns are mounting that the Big Four will dominate and dilute corporate sustainability audits.

Their access to the summit is proof that Big Oil still holds "a dangerous sway" over the climate process, campaigners say.

Delegation’s composition consistent with new KBPO report revealing this year’s U.N. climate talks have the largest number of fossil fuel lobbyists to date.