Jorge Martín Sainz de los Terreros is an architect, urban designer and researcher. During the last five years, he has worked as a public official at the Council of Madrid, and currently he develops his postdoctoral research at the Institute for European Ethnology at Humboldt-Universität zu Berlin. His research mainly engages with questions about issue publics and participation. His doctoral thesis explored how temporary urban spaces could become eventual publics and how that related with everyday practices of care. Most recently, he is focussing on heat and climate change controversies in urban environment and cities. He is a member of the ERC project WAVEMATTERS, and studies the conceptualisation, problematisation and operationalisation of heat in public policies, plans and projects in the city of Madrid.