David Attenborough calls it “the major challenge facing the world”. Beside the B word, two the C words look set to dominate this year’s political battleground: climate change; or climate catastrophe as some would have it. Extinction Rebellion’s protests brought the debate to our screens – if not our commutes – this summer as pressure mounts for meaningful action. It’s estimated that the built environment contributes 40% of the UK’s carbon emissions; and if we have any hope of achieving “net zero” by 2050 then a serious plan is needed. Workplace and facilities leaders have been quietly contributing to carbon reduction for some time. How can they lead further change?