I welcome the news that Transport for the South East has submitted its ambitious 30-year transport strategy, and my right hon. Friend is to have regard to that in setting policy and investment decisions. Decarbonisation is vital, and as Transport for the South East has shown, its ability to bring together local authorities, Network Rail, Highways England and others and act at scale with six other sub-national transport bodies puts them in a perfect position to help deliver our decarbonisation initiatives. What role does my right hon. Friend have in mind for STBs to help bring about the interventions needed to meet our climate goals?