The UK’s air pollution is at illegal levels and scientists are clear that we need to do a lot more to address the growing climate crisis. Few will forget the Prime Minister’s pledge to lie down in front of the bulldozers to stop the construction of a third runway at Heathrow airport. Luckily for him—luckily for us all—he is now at the steering wheel and can turn those bulldozers around. Will he do it? Will he scrap the third runway?