Last reviewed on 12-01-2023
Documentation of California's Greenhouse Gas Inventory
(2023 Edition - Last updated on 12-1-2023)
♦ 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 2014 —
● Greenhouse gas emission estimate —
Amount: |
13,868 tonnes of CH4 Emitted (346,706 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 —
● 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: Livestock and Manure Management. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf |
Parameter: |
Ratio of California to US horse population = 0.0759 |
Reference: |
AHC (2005). American Horse Council. National Economic Impact of the U.S. Horse Industry. Report available at: http://horsecouncil.org/ |
Parameter: |
US horse population = 10,150,000 head |
Reference: |
DATA NOT AVAILABLE - Value for this year is assumed to be equal to that of the previous year. |
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: |
18,000 g (i.e. 18 kg) of CH4 per head of Horses 450,000 g (i.e. 450 kg) of CO2eq. per head of Horses |