1. Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4.
2. Union of Concerned Scientists, Cambridge, MA 02238-9105, USA.
3. Global Carbon Project, Commonwealth Scientific and Industrial Research Organization (CSIRO) Marine and Atmospheric Research, Canberra, ACT 2601, Australia.
4. Department of Global Ecology, Carnegie Institution, Stanford, CA 94305, USA.
5. Woods Hole Research Center, Woods Hole, MA 02543, USA.
6. Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053, USA.
7. Department of Civil and Environmental Engineering, Duke University, Durham, NC 27708-0287, USA.
8. Tropical Resources Institute, Yale School of Forestry and Environmental Studies, New Haven, CT 06511, USA.
9. Institut Pierre Simon La Place and Laboratory of the Science of Climate and Environment (IPSL/LSCE), Unité mixte de recherche 1572, Commissariat à l'Energie Atomique (CEA)-CNRS, 91191 Gif sur Yvette, France.
10. Met Office Hadley Centre for Climate Prediction and Research, Exeter, Devon EX1 3PB UK.
11. Centro de Previsäo de Tempo e Estudos Climáticos (CPTEC), Cachoeira Paulista, SP, Brazil.