- Chakravarty, S., A. Chikkatur, H. de Conink, S. Pacala, R. Socolow and M. Tavoni (2009), “Sharing Global CO2 Emission Reductions Among One Billion High Emitters”, Proceedings of National Academy of Science, v. 106(29), pp. 11884-11888. doi:10.1073/pnas.0905232106
- Chakravarty, S., A. Chikkatur, H. de Coninck, S.W. Pacala, R. Socolow, M. Tavoni (2009), “Reply to Grubler and Pachauri: Developing national obligations from individual emissions.” Proceedings of the National Academy of Sciences, v.106(43), E124.
- Chakravarty, S. , R. Socolow and M. Tavoni (2009), “A focus on individuals can guide nations towards a low carbon world “, Climate Science and Policy, November 13.
- O’Reilly, J., K. Brysse., M. Oppenheimer, and N. Oreskes (2009). “Characterizing uncertainty in expert assessments.” Wiley Interdisciplinary Reviews: Climate Change. Submitted. 35 m.s. pp.
- Socolow, R.H., and A. Glaser. “Balancing Risks: Nuclear Energy & Climate Change,” Dædalus, Cambridge, MA, MIT Press for the American Academy of Arts & Sciences, September 2009 138(4), pp. 31-44. doi:10.1162/daed.2009.138.4.31
- Tilman, D., R.H. Socolow, J.A. Foley, J. Hill, E. Larson, L.R. Lynd, S.W. Pacala, J. Reilly, T. Searchinger, C. Sommerville, and R.H. Williams (2009), “Beneficial Biofuels – The Food, Energy, and Environment Trilemma,” Science, Vol. 325. no. 5938, pp. 270 – 271. (See also, R.H. Socolow, J. A. Foley, J. Hill, E. Larson, L. R. Lynd, S.W. Pacala, J. Reilly, T. Searchinger, C. Sommerville, and R.H. Williams (2009) “Response to Letters to the Editor,” Science, v. 326, p. 1344.)
- Tol, R.S.J., S.W. Pacala, and R.H. Socolow (2009) “Understanding Long- Term Energy Use and Carbon Dioxide Emissions in the USA,” Journal of Policy Modeling, v.31 (2009) pp. 425- 445.
- Yuan Xu, R.H. Williams and R.H. Socolow, “China’s Rapid Deployment of SO2 Scrubbers,” Energy & Environmental Science, 2 (2009), pp. 459-465.