Duncan McLaren is a freelance researcher and consultant, focusing on energy, climate, cities, and sustainability. He is studying part-time for a PhD in the justice implications of geoengineering at Lancaster University, UK. Previously, he worked for many years in the environmental non-profit sector, most recently as Chief Executive of Friends of the Earth Scotland from 2003 to 2011. He is the co-author, with Julian Agyeman, of Sharing Cities: A Case for Truly Smart and Sustainable Cities.