Keir Starmer's arrival at COP29, with a bold promise to cut the UK’s carbon emissions by 81% by 2035, stands out as a beacon of hope amid an otherwise bleak start to the climate talks. Despite the absence of many key leaders, including Joe Biden, Starmer's commitment aims to demonstrate the UK's determination to transition away from fossil fuels and lead the way toward a net-zero economy. However, achieving this ambitious goal will require significant effort and expense, particularly in overhauling energy systems and enhancing energy efficiency at home.While the 81% emissions target is aligned with the Climate Change Act, which was supported across parties, the scale of the challenge presents a political risk. The focus at COP29 is primarily on financial mechanisms for supporting poorer nations in their climate transitions, but the UK, like many other wealthy nations, is hesitant to increase financial contributions. See also World article, ‘COP29: more finance needed’.