This study investigates the combined effects of population aging and global warming on temperature-related mortality. The researchers found that at 1.5°C, 2°C, and 3°C of global warming, heat-related mortality will increase by 0.5%, 1.0%, and 2.5%, respectively, with 20-25% of these deaths attributable to population aging. Despite a projected decrease in cold-related mortality due to warming, population aging will counteract this, leading to a net increase in cold-related deaths. The study concludes that population aging is a crucial factor in future temperature-related mortality, increasing the burden for both heat and cold.

Kai Chen, Evan de Schrijver, Sidharth Sivaraj, Francesco Sera, Noah Scovronick, Leiwen Jiang, Dominic Roye, Eric Lavigne, Jan Kyselý, Aleš Urban, Alexandra Schneider, Veronika Huber, Joana Madureira, Malcolm N. Mistry, Ivana Cvijanovic, Antonio Gasparrini, Ana M. Vicedo-Cabrera