Learn about the quality of life, data for building healthy cities, green spaces, and the impact of climate change on cities' health. Suraj Bhattarai is a public health physician and urban health researcher and a research fellow at the Global Institute for Interdisciplinary Studies, a scientific committee member of the International Science Council’s Urban Health and Wellbeing Programme, and a regional coordinator of the ISUH’s ‘Urban health mapping and analysis project’. Keiko Nakamura, MD PhD, is the Director of WHO Collaborating Centre for Healthy Cities and Urban Policy Research and Professor of the Department of Global Health Entrepreneurship, Tokyo Medical and Dental University. She is a public health scholar with over 25 years of experience in research in health and environment in urban areas, with a particular focus on healthy cities and urban policy; determinants of health; population ageing; use of information technology in health services; public health emergencies; planetary health; and implementation science. She has worked with the global Healthy Cities movement since the 1990s.