I am the group leader of Atmospheric Chemistry & Modeling at Peking University. In ACM, we: • Take an interdisciplinary approach to studying how human activities lead to globalizing air pollution and its consequences on air quality, climate and ecosystems and Earth system feedbacks. • Study emissions and transboundary impacts of air pollutants, with a particular focus on China's pollution and its interactions with other regions through economic trade and atmospheric transport. • Use a suite of research tools from various disciplines, including economic-emission statistics and models, satellite remote sensing, atmospheric modeling, and AI methods.