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Sir Keir Starmer challenged sceptics with a promise to double down on net zero as he admitted the “consensus is gone” on climate change in a speech at the UN’s Cop30 summit.

The Prime Minister staunchly defended his Government’s clean energy agenda but conceded that cross-party unity on “science that is unequivocal” has splintered both in Britain and globally.

Speaking at the international climate conference in Belem, Brazil’s city gateway to the Amazon, Sir Keir sought to make the economic case for net zero by arguing the green transition would create jobs and lower ho

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