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: 3A1f - Livestock - Enteric Fermentation - Horses
Sector: Agriculture & Forestry : Enteric Fermentation : Other Livestock

♦ Activity: Livestock population - Horses

♦ Greenhouse gas: Methane ( CH4 )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 11,423 tonnes of CH4 Emitted (239,881 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 = 634,607 head of Horses
Basis: Data
Reference: FAO (2006). FAOSTAT Statistical Database. Food and Agriculture Organization of the United Nations. Available online at http://faostat.fao.org

● Parameters and Constants used in calculations —

Parameter: CH4 emission factor = 18,000 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: 18,000 g (i.e. 18 kg) of CH4 per head of Horses
378,000 g (i.e. 378 kg) of CO2eq. per head of Horses
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