 Our study shows that pursuing aspirational climate change mitigation targets can avert up to eight million premature deaths and add up to 0.7 years to life expectancy by 2050, while combining aggressive climate change mitigation efforts with maximum feasible air quality control can add 1.6 years to life expectancy. This article was authored by Osir Dimitrova, Guillaume Mouir, Gregor Quixote, and others.