Hillary Angelo is Assistant Professor of Sociology at the University of California Santa Cruz. Her research examines interactions between social understandings of nature and processes of urbanisation. It engages with urban and environmental sociology, geography, and the sociology of knowledge, and draws on visual, historical, and ethnographic methods. Her work has appeared in journals including Urban Studies, the International Journal of Urban and Regional Research, Theory and Society, and City.

Greg Clark is a global advisor for cities, major businesses, and investors. He works with leadership teams in global cities, global firms, global institutions, and at global gatherings. From 2008 to 2016 he was chairman of the International Advisory Board of the New York Regional Plan, Oslo Regional Strategy, Salvador, Vienna, and Sao Paulo Strategic Plans and he was International Advisor on the Metropolitan Strategic Plans of Rio da Janeiro, Barcelona, Gauteng/Johannesburg, Western Cape, Toronto, Glasgow, Mumbai, Turin and Auckland.