1. Institute of Biological and Environmental Sciences & ClimateXChange; University of Aberdeen; 23 St Machar Drive, Aberdeen; Scotland; AB24 3UU; UK
2. Institute of Social Ecology Vienna (SEC); Alpen-Adria Universitaet (AAU); Schottenfeldgasse 29; Vienna; 1070; Austria
3. Potsdam Institute for Climate Impact Research; Research Domain III: Sustainable Solutions; Telegraphenberg A 62; Potsdam; D-14473; Germany
4. School of Environmental Science; Murdoch University; South Street; Murdoch; WA; 6150; Australia
5. Mitigation of Climate Change in Agriculture Programme; Natural Resources Management and Environment Department; FAO; Via Terme di Caracalla; Rome; 00153; Italy
6. Departamento de Ecologia; Universidade de Brasília; I.B. C.P. 04457, Campus Universitário Darcy Ribeiro - UnB. D.F.. CEP; Brasília; 70919-970; Brazil
7. Research Institute of Forests and Rangelands; National Botanical Garden of Iran; P.O. Box 13185-116; Tehran; Iran
8. UK Biochar Research Centre; University of Edinburgh; Crew Building, The King's Buildings, West Mains Road; Edinburgh; EH9 3JN; UK
9. Centro de Investigaciones en Ecosistemas; UNAM; AP 27-3 Xangari, Morelia; Michoacán; 58089; México
10. International Institute for Applied Systems Analysis; Ecosystem Services and Management Program; Schlossplatz 1; Laxenburg; A-2361; Austria
11. Department of Energy and Environment; Physical Resource Theory; Chalmers University of Technology; Göteborg; SE-412 96; Sweden
12. ABARE; GPO Box 1563; Canberra; ACT; 2601; Australia
13. New Zealand Agricultural Greenhouse Gas Research Centre; Grasslands Research Centre; Tennent Drive, Private Bag 11008; Palmerston North; 4442; New Zealand
14. Institute of Environment and Sustainable Development in Agriculture; Chinese Academy of Agricultural Sciences; 12 Southern Street of Zhongguancun; Beijing; 100081; China
15. Faculty of Forestry; University of Khartoum; Khartoum; 13314; Sudan
16. World Agroforestry Centre (ICRAF); Research Unit: GRP5; Office; Room G197, PO Box 30677-00100; Nairobi; Kenya
17. Centre for Sustainable Technologies (CST); Indian Institute of Science Bangalore; Bangalore; 560 012; India
18. Department of Agronomy; Plant Sciences Center; Kansas State University; 2004 Throckmorton; Manhattan; KS; 66506; USA
19. Institute of Global Climate and Ecology; Glebovskaya str, 20-B; Moscow; 107258; Russia
20. Department of Energy, Environment and Climate Change; African Development Bank; B.P. 323 - 1002 Belvedere; Tunis; Tunisia
21. Cabot Institute; School of Geographical Sciences; University of Bristol; University Road; Bristol; BS8 1SS; UK
22. Energy and Environmental Analysis Research Group; EPRI (Electric Power Research Institute); 2000 L Street NW, Suite 805; Washington; DC; 20036; USA