The Global Carbon Budget (GCB) shows emissions rising and time running out to deliver the Paris Agreement. As global warming pushes humanity closer to dangerous tipping points, our only way out is rapid CO2 emissions cuts and triggering positive tipping points. Around the world, concerted efforts are activating positive social, economic, political and technological shifts that are driving progress towards cleaner energy and a safer future — faster than many realise. COP28 is a vital opportunity to harness exponential change and get us back on course. Because later is too late. University of Exeter speakers include Professor Pierre Friedlingstein and Professor Tim Lenton.