The Lancet Countdown’s recent assessment indicates a dire future for global health due to climate change. A 4.7-fold increase in annual heat-related deaths is projected by 2050, with nearly five times more fatalities from extreme heat. Additionally, escalating carbon emissions pose threats such as widespread droughts, expanded mosquito-borne diseases, and strained health systems. The study underscores the urgent need for climate action, especially as global temperatures are on track to exceed 2 degrees Celsius. The upcoming COP28 talks in Dubai must address this health crisis exacerbated by fossil fuel use.