Dr. Mark Parrington is a senior scientist in the Copernicus Atmosphere Monitoring Service (CAMS) Development Section at the European Centre for Medium-Range Weather Forecasts (ECMWF). He specialises in the application of Earth observation data, in situ measurements with numerical modelling to monitor global atmospheric composition and air quality. In recent years he has closely been monitoring, and working on science communication for, wildfires in the Arctic region and the impacts of smoke and other atmospheric pollution on the Arctic atmosphere.