Russia, Oceania and North America) comprise approximately 18 per cent of the global cattle stocks; thus about the same number of cattle that can be found under totally different production and climatic conditions in sub-Saharan Africa (SSA). Production conditions differ largely across these regions and climate zones (Herrero et al., 2013), and with them the livestock management practices and the availability and nutritional quality of feedstocks. These differences result in markedly different GHG emissions from ruminant livestock. For example, while emissions per kg of edible milk protein range from 10 to 20 kg CO2 equivalents in Europe or North America, respective emissions in SSA are in excess of 100 kg CO2 equivalents per kg edible milk protein, approximately one order of magnitude higher. Major reasons for this discrepancy in the GHG emission intensity between more developed and developing regions are generally related to differences in feed intake, diet composition and nutritional quality of feeds, as well as animal species and breeds (i.e.