1. IPCC. Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. (eds, Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M. & Miller, H. L.). Cambridge University Press, Cambridge, UK and New York, NY, USA (2007).
2. Tubiello, F. N., Donatelli, M., Rosenzweig, C. & Stockle, C. O. Effects of climate change and elevated CO2 on cropping systems: Model predictions at two Italian locations. Eur. J. Agron. 13(2), 179–189 (2000).
3. Ainsworth, E. A. & Long, S. P. What have we learned from 15 years of free-air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2. New Phytol. 165(2), 351–372 (2005).
4. Ainsworth, E. A. et al. Does elevated atmospheric [CO2] alter diurnal C uptake and the balance of C and N metabolites in growing and fully expanded soybean leaves? J. Exp. Bot. 58(3), 579–591 (2007).
5. Long, S. P., Ainsworth, E. A., Leakey, A. D. & Morgan, P. B. Global food insecurity. Treatment of major food crops with elevated carbon dioxide or ozone under large-scale fully open-air conditions suggests recent models may have overestimated future yields. Philosophical Transactions of the Royal Society of London B: Bilon. Sci. 360(1463), 2011–2020 (2005).