Just three months before COP28 in Dubai, UN Secretary-General António Guterres has made it clear that he does not want to leave international climate policy to the UN member countries. With his day-long Climate Ambition Summit and the many events around the SDG Summit and the UN General Assembly in New York, Guterres has clearly laid claim to leadership on these issues. A claim that the UN has not made in any key area of international relations for a long time.