Materials.
- The 3-2-1-0 Grading System
- The energy-storage revolution (Crabtree, Nature 29 October 2015)
- Clean Revolution (Science, 27 November 2015)
- Top-10 Myths about Sustainability (Scientific American, March 2009)
- A US nuclear future? (Nature, 23 September 2010)
- Debate: Does the world need nuclear energy? (TED talk, February 2010)
- Biofuels boom could fuel rainforest destruction (Stanford University, 17 February 2009)
- Beneficial Biofuels - The Food, Energy, and Environment Trilemma (Science, 17 July 2009)
- Beyond food versus fuel (Science, 23 June 2011)
- Algae's Second Try (Science, 2 September 2011)