Last reviewed on 10-02-2020

Documentation of California's Greenhouse Gas Inventory (13th Edition - Last updated on 10-15-2020)

♦ Category: Agriculture, Forestry and Other Land Use

IPCC: 3A1d - Livestock - Enteric Fermentation - Goats
Sector: Agriculture & Forestry : Enteric Fermentation : Other Livestock

♦ Activity: Livestock population - Goats

♦ Greenhouse gas: Methane ( CH4 )

► Year 2013 —

● Greenhouse gas emission estimate —

Amount: 687.50 tonnes of CH4 Emitted (17,188 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: Livestock and Manure Management. 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 = 137,500 head of Goats
Basis: Data
Reference: USDA (2016). U.S. Department of Agriculture, National Agricultural Statistics Service, Quick Stats. Accessed online at: #http://quickstats.nass.usda.gov/

● Parameters and Constants used in calculations —

Parameter: CH4 emission factor = 5,000 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: Livestock and Manure Management. 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 = 25
Reference: IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.). #http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm

● Greenhouse gas emitted per unit activity (derived from values listed above) —

Amount: 5,000 g (i.e. 5 kg) of CH4 per head of Goats
125,000 g (i.e. 125 kg) of CO2eq. per head of Goats