Michael Box recently retired as Associate Professor in Physics at the University of New South Wales, Australia. He has taught Atmospheric Science, and a number of advanced Physics courses. He has 100 publications, mostly in atmospheric science, with a particular focus on radiative transfer, remote sensing, and the radiative effects of aerosols. He is co-author of Physics of Radiation and Climate (CRC Press, 2016). He is a Fellow of the Australian Meteorological and Oceanographic Society, and a member of AGU. His former graduate students can be found in scientific establishments in Europe and Australia. He currently teaches Adult Education courses in Sydney. Gail Box recently retired as Senior Lecturer in Physics at the University of New South Wales, Australia, where she taught a number of courses, including Atmospheric Science. She previously worked for BHP (Billiton). Her research focused on the environmental effects of atmospheric aerosols. In 2005 she founded the Australian (and New Zealand) Aerosol Workshop. She is co-author of Physics of Radiation and Climate (CRC Press, 2016). She is a member of AMOS, and the Clean Air Society of Australia and New Zealand. Her former graduate students can be found in scientific establishments in Europe, Australia and the USA.