The Greenhouse Gas Emissions Profile of Coal Bed Methane (CBM) Production: A Review of Existing Research." Manchester: University of Manchester (2014)."
Has US Shale Gas Reduced CO2 Emissions? In Examining recent changes in emissions from the US power sector and traded fossil fuels., 2012.
The expanding carbon markets: Issues, perspectives, and the role of science In Tyndall Centre Briefing Note 37., 2009.
Voluntary carbon offsetting schemes for aviation: efficiency and credibility." Journal of Sustainable Tourism 15 (2007): 223-248."
Shale gas: an updated assessment of environmental and climate change impacts." Manchester University (2011)."
Aviation Policy Options for not Exceeding the EU +2 ◦C Threshold." In Blue Skies or Storm Clouds? Essays on Public Policy & Air Transport, edited by D. Jong, B. Kaashoek and W. - J. Zondag, 72-78., 2008."