Last reviewed on November 2, 2011 at 10:05

Documentation of California's Greenhouse Gas Inventory (First Edition - Last updated on 11/19/2007)

♦ Category: Agriculture, Forestry and Other Land Use

IPCC: 3A1c - Livestock - Enteric Fermentation - Sheep
Sector: Agriculture & Forestry : Enteric Fermentation : Other Livestock

♦ Activity: Livestock population - Sheep

♦ Greenhouse gas: Methane ( CH4 )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 8,000 tonnes of CH4 Emitted (168,000 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Livestock population] * [CH4 emission factor]
Reference: IPCC (2006) 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 10. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf

● Activity level used in calculations —

Activity: Livestock population = 1,000,000 head of Sheep
Basis: Data
Reference: USDA (2007). U.S. Department of Agriculture, National Agriculture Statistics Service, California Statistics. Available online at: http://www.nass.usda.gov/Statistics_by_State/California/index.asp

● Parameters and Constants used in calculations —

Parameter: CH4 emission factor = 8,000 g / individual
Reference: IPCC (2006) 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 10. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf
Constant: Global warming potential of CH4 = 21
Reference: IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K.

● Greenhouse gas emitted per unit activity —

Amount: 8,000 g (i.e. 8 kg) of CH4 per head of Sheep
168,000 g (i.e. 168 kg) of CO2eq. per head of Sheep
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