While the COP26 summit in Glasgow is only three months away, extreme weather events are wreaking havoc globally including across Europe, China, India, Siberia, and the United States. The science in the new IPCC report paints a clearer picture than ever before – the climate crisis is here, and we must act fast. Andrew Norton, who is a director of IIED, calls on G20 leaders to listen to the report’s findings and step up their climate action.