The world experienced its warmest September on record, with temperatures surpassing the previous high by a significant margin. This increase in temperature is driven by ongoing emissions of warming gases and the El Niño weather event. Experts are shocked by the scale of the increase and predict that 2023 is on track to become the warmest year on record. The unprecedented temperatures observed in September, following a record-breaking summer, have broken previous records by an extraordinary amount. This alarming trend raises concerns among researchers as it surpasses the goals set in the Paris Agreement. The heatwave also puts pressure on politicians to take urgent and ambitious climate action, especially as the COP28 climate summit approaches.