1. Thomson, A. J., Giannopoulos, G., Pretty, J., Baggs, E. M. & Richardson, D. J. Biological sources and sinks of nitrous oxide and strategies to mitigate emissions. Philos Trans R Soc, B 367, 1157–1168 (2012).
2. Hartmann, D. L. et al. In Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds T. F. Stocker et al.) Ch. 2, 159–254 (Cambridge University Press, 2013).
3. Ciais, P. et al. In Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds T. F. Stocker et al.) Ch. 6, 465–570 (Cambridge University Press, 2013).
4. Lehmann, J. & Joseph, S. Biochar for environmental management: science and technology. (Earthscan, 2009).
5. Smith, P. et al. In Climate Change 2014: Mitigation of Climate Change. Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds O. Edenhofer et al.) Ch. 11, 811–922 (Cambridge University Press, 2014).