Gerald Mills is an Associate Professor in the School of Geography at University College Dublin, Ireland. He has three decades of experience in urban climatology and is a co-author of a modern textbook (Urban Climates) on the field. His work focuses on the development of an urban climate science that has a coherent body of knowledge and associated tools to enable its application to cities globally. He is a former President of the International Association for Urban Climates (IAUC) and of the Geographical Society of Ireland.