[Health Policy] The 2025 China report of the Lancet Countdown on health and climate change: empowering cities for synergistic action

According to the World Meteorological Organization (WMO), 2024 was the hottest year on record. China had unprecedented heat and heavy precipitation, with a national average temperature of 10·9°C, 1·01°C higher than the historical average (1991–2020), and annual precipitation of 697·7 mm, which is 9·0% higher than the average. As 2025 marks the 10th anniversary of the Paris Agreement and a key juncture for submitting new contributions, accelerating global climate action is imperative, especially in cities, which account for 58% of the world's population and 70% of total carbon emissions.