Richard McKenzie is an atmospheric research scientist with interests in UV radiation, its variability, its environmental impacts, and its interactions with climate change. He has extensive experience measuring and modelling spectral UV irradiance, measuring trace gases and aerosols that affect its propagation through the atmosphere, and investigating its effects - both positive and negative - on humans. He has authored ~160 papers and has been lead-author in several International Assessments for the WMO and UNEP, which report back to the parties of the Montreal Protocol on the State of the Ozone Layer, and the Environmental Impacts of ozone Depletion and its Interactions with Climate Change. He works hard to bring UV information to the public, through web pages, general-interest articles, as a public speaker and through regular posts at https://uv.substack.com. He has also convened several highly successful UV workshops. Since 2012, he has worked in an emeritus capacity at NIWA. He drove the development of educational smartphone apps (uv2Day, UVNZ and GlobalUV) that give UVI information, and associated health effects. In 2020 he authored “ Saving Our Skins ”.