Richard Macrory is a barrister, and Professor of Environmental Law at University College, London where he is director of the Centre for Law and the Environment and the UCL Carbon Capture Legal ProgrammeIan Havercroft is a barrister and senior research fellow with the UCL Carbon Capture Legal Programme. In 2011 he joins the Global Carbon Capture Storage Institute in Canberra, Australia.Richard Stewart is the John Edward Sexton Professor of Law at NYU University, New York where he is also director of the Centre for Environmental and Land Use Law.