Dr. Nathaniel Jones is a senior building scientist at Arup, an architecture professor at Wentworth Institute of Technology, and president of the USA affiliate of the International Building Performance Simulation Association. His portfolio at Arup includes numerous thermal and visual comfort, daylighting, microclimate, air quality, and COVID-19 disinfection projects. Nathaniel has developed simulation tools used by architects and engineers worldwide, including comfort.arup.com, Arup’s advanced online comfort modeling tool, and Accelerad, a suite of open-source GPU-based lighting and daylighting simulation tools used by architects, engineers, and educators around the world. He is the author of over twenty peer-reviewed papers related to occupant health, comfort, and building energy use.