Atmospheric aerosols are formed, transformed, transported, and removed through complex physicochemical processes, and they strongly influence weather and climate through interactions with clouds, radiation, and precipitation. In turn, meteorology and climate shape aerosol sources, properties, budgets, and lifecycles. These interactions are especially important during extreme events and in rapidly changing environments.

We welcome theoretical, observational, experimental, modeling, and data-driven studies that advance understanding of aerosols and aerosol-cloud-radiation-climate interactions across scales, from process-level understanding to Earth system prediction. Topics include: (1) Aerosol sources, formation, evolution, and removal. (2) Aerosol processes affecting radiation and clouds, including new-particle formation and growth, cloud condensation and ice nucleation, multiphase chemistry, optical properties, and mixing state. (3) Interactions among aerosols, radiation, liquid-, mixed-, and ice-phase clouds, and precipitation. (4) Emerging observational and data-driven constraints, including laboratory studies, field observations, remote sensing, and machine learning. (5) Impacts and feedbacks involving weather, climate, and air quality.