1. Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, USA.
2. International Research Institute for Climate and Society, Palisades, NY, USA.
3. Department of Earth and Environmental Sciences, Columbia University, Palisades, NY, USA.
4. International Food Policy Research Institute, Washington, DC, USA.
5. Macro Agriculture Research Institute and College of Economics and Management, Huazhong Agricultural University, Wuhan, Hubei, China.