Aerosols are a critical component of the climate system and a risk to human health. Here. the lockdown response to the coronavirus outbreak is used to analyse effects of dramatic reduction in anthropogenic aerosol sources on satellite-retrieved aerosol optical depth (AOD). A machine learning model is applied to estimate daily AOD during the initial lockdown in China in early 2020. https://www.ealisboa.com/top-offer-Telemarkskongen-SH-best-find/