Aidan studied Environmental Geoscience at the University of Edinburgh where he graduated in 2008; he gained a PhD in Climate Modelling from the University of Bristol in 2013. Subsequently he worked in air pollution modelling research at the University of Hertfordshire, and in air quality management at Air Quality Consultants Ltd. Aidan joined the Greenpeace Research Laboratories in 2018 where he is an Air Quality Scientist. Based at the University of Exeter in the UK, the Greenpeace Research Laboratories conduct independent research, and provide scientific advice and analytical support to Greenpeace offices worldwide.