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Table 3 Emissions factors (kg CH4 -animal−1 year−1) as given by IPCC 2006 [4] and as revised resulting from this study

From: Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Region Dairy cow enteric fermentation Meat and other cattle enteric fermentation Dairy cow manure management Meat and other cattle manure management Swine manure management
IPCC 2006a This studyb IPCC 2006a This studyd IPCC 2006a This studyb IPCC 2006a This studyb IPCC 2006a This studyb
US–Canada 128 158.7 53 58.8 53 137.0 1 2.4 12 15
W. Europe 117 130.6 57 46.5 25 31.0 7 9.9 7 6.7
E. Europe 99 92.1 58 56.1 12 4.9 6 4.5 3 6.8
Oceania 90 120.1 60 71.9 29 9.4 2 1.6 13 23.6
Latin America 72 108.6 56 57.9 1 2.0 1 0.8 1 19
E.–S.E. Asia 68 153.2 47 42.4 10 10.1 1 0.4 2 2.7
Africa 46 77.2 31 31.0 1 1.8 1 1c 1 1c
S. Asia 58 62.4 27 41.6 5 5.5 2 3 5 5c
  1. aIPCC 2006 [4], Chapter 10: Agriculture, supplemental tables
  2. bCalculated using the updated information presented here in the equations in IPCC 2006 [4], Chapter 10
  3. cEmissions factors not modified from IPCC 2006 [4] due to sparse information
  4. d2014 National Inventory Submissions to the UNFCCC, CRF, Table 4. A reported for all non-dairy cattle in year 2012 (US, EU15, Russian Fed., and Australia); or calculated using IPCC 2006 [4] defaults except for revised body weights listed in Table 2