Tier 1 enteric fermentation emission factors for cattle by region (kg CH4/head/yr). Regional cattle factors are Table 10.11 in both the 2006 Guidelines and the 2019 Refinement; Table 10.10 holds the non-cattle species (see ipcc_2019_enteric_ef_other).
Source
Predominantly the 2006 Guidelines, Vol 4, Ch 10, Table 10.11, not the 2019 Refinement's Table 10.11 (Updated). Verified against both published tables:
2006 values, differing from the 2019 Refinement: North America 128/53 (2019: 138/64), Western Europe 117/57 (126/52), Eastern Europe 99/58 (93/58), Latin America 72/56 (87/56), Asia 68/47 (78/54), Africa 46/31 (76/52), Middle East other cattle 31 (60).
Matching neither edition: Oceania dairy 90 (2006: 100; 2019: 93), Middle East dairy 63 (2006 groups Africa and the Middle East at 46; 2019: 76), Indian Subcontinent 68/47 (2006: 58/27; 2019: 73/46).
The
"Global"fallback row (80/47) appears in no IPCC table in either edition. Assumed, unverified. The 2019 Refinement also moved buffalo into this table (78 Western Europe, 68 Eastern Europe / Latin America / Asia, 81 Africa, 67 Middle East, 85 Indian Subcontinent), which is not reflected here. Tracked in whep#601.
Examples
ipcc_2019_enteric_ef_cattle
#> # A tibble: 20 × 3
#> region category ef_kg_head_yr
#> <chr> <chr> <dbl>
#> 1 North America Dairy Cattle 128
#> 2 North America Other Cattle 53
#> 3 Western Europe Dairy Cattle 117
#> 4 Western Europe Other Cattle 57
#> 5 Eastern Europe Dairy Cattle 99
#> 6 Eastern Europe Other Cattle 58
#> 7 Oceania Dairy Cattle 90
#> 8 Oceania Other Cattle 60
#> 9 Latin America Dairy Cattle 72
#> 10 Latin America Other Cattle 56
#> 11 Asia Dairy Cattle 68
#> 12 Asia Other Cattle 47
#> 13 Africa Dairy Cattle 46
#> 14 Africa Other Cattle 31
#> 15 Middle East Dairy Cattle 63
#> 16 Middle East Other Cattle 31
#> 17 Indian Subcontinent Dairy Cattle 68
#> 18 Indian Subcontinent Other Cattle 47
#> 19 Global Dairy Cattle 80
#> 20 Global Other Cattle 47