Reducing emissions from agriculture to meet the 2°C target (19 page pdf, E. Wollenberg, M. Richards, P. Smith, P. Havlík, M. Obersteiner, F.N. Tubiello, M. Herold, P. Gerber, S. Carter, A. Reisinger, D. van Vuuren, A. Dickie, H. Neufeldt, B.O. Sander, R. Wassmann, R. Sommer, J.E. Amonette, A. Falcucci, M. Herrero, C. Opio, R. Roman-Cuesta, E. Stehfest, H. Westhoek, I. Ortiz-Monasterio, T. Sapkota, M.C. Rufino, P.K. Thornton, L. Verchot, P.C. West, J.-F. Soussana, T. Baedeker, M. Sadler, S. Vermeulen, B.M. Campbell, Global Change Biology, May 17, 2016)
Today we review an assessment of approaches voluntarily proposed by 119 nations as Nationally Determined Contributions for COP21 in Paris to mitigate non CO2 emissions from the agricultural sector. Currently available approaches would deliver as little as 21% of the mitigation required to meet the 2 Deg C goal by 2030. The authors call for a range of innovative methods including carbon pricing, sequestering soil carbon and shifting dietary patterns and breeding cattle to produce less methane. Although agriculture is rural, some cities such as Ottawa, Canada contain more farmland (40% of rural area or 300,000 acres) and so must face up to the challenges in reducing greenhouse gases in this sector, as well as in transportation and the heating and cooling of buildings- and make this part of urban climate action plans.
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