Climate change and air pollution are two important environmental challenges with great impacts on the planet and humans. Addressing one issue may have positive or negative effects on the other. The School of Environment and Institute for Carbon Neutrality at Tsinghua University, Nature Geoscience, Nature, Nature Climate Change, Nature Energy, Nature Cities, Nature Reviews Earth and Environment, and Communications Earth and Environment will host Nature Conference on Air Pollution and Climate Change in Beijing on May 22-24, 2024. The event aims to provide a platform for natural and social scientists as well as policymakers to discuss interactions of these two issues, benefits of tackling them, and actions for joint mitigation.