Piloting a carbon emissions audit for an international arts festival under tight resource constraints: methods, issues and results." In Sustainable Tourism Futures: Perspectives on Systems, Restructuring and Innovations, edited by S Gössling, C. M. Hall and D. Weaver., 2008."
Substitutable biodiesel feedstocks for the UK: a review of sustainability issues." Journal of Cleaner Production 17 (2009)."