The Economics of Geoengineering (2019) with Tony Harding. Chapter 25 in Managing Global Warming: An Interface of Technology and Human Issues. pp 729-750 Download 

The Economics of Climate Engineering (2018) with Katharine Ricke and Gernot Wagner. Chapter 7 in Geoengineering our Climate? Ethics, Politics and Governance. Download

The Alternatives to Unconstrained Climate Change: Emissions Reductions versus carbon and solar geoengineering (2015) with Scott Barrett. Chapter 25 in Towards a workable and effective climate regime. Download