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From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Jonathan Finighan
Sent: Friday, October 23, 2009 10:42 AM
Subject: Agriculture emissions for sub-Saharan Africa
I am interested in annual emissions data for agriculture for sub-Saharan Africa. I have a question about an apparent discrepancy between the figure given for this sector in the CAIT database, and the figures in the report from the US-EPA which is cited as the source of CAIT data on non-CO2 emissions from agriculture in CAIT: Greenhouse Gas Sources and Methodologies.
The figure on the CAIT database for annual emissions for the agriculture sector for sub-Saharan Africa, in 2000, is 293.5 million tCO2e.
The figure given for Africa (not just sub-Saharan) for 2005 in US-EPA, Global Anthropogenic Non-CO2 Greenhouse Gas Emissions: 1990-2020. 2006, US Environmental Protection Agency: Washington, D.C., USA, is 1,010.98 million tCO2e.
This is a very large discrepancy. I do not think it can be explained by the different regions (Africa vs sub-Saharan Africa). The US-EPA figure seems to coincide with the charts in the IPCC AR4 (http://www.ipcc.ch/pdf/assessment-report/ar4/wg3/ar4-wg3-chapter8.pdf) see page 504, top right hand corner. The AR4 also cites the US-EPA as the source of its data.
Am I missing something here? As far as I can tell the CAIT is using the same figures and the same source. What is going on?
Many thanks for your help,
Forests Philanthropy Action Network (FPAN)
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