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Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa

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dc.contributor.author Taviv, R
dc.contributor.author Wise, R
dc.contributor.author Van der Merwe, Martina R
dc.contributor.author Winkler, H
dc.date.accessioned 2008-11-14T10:21:17Z
dc.date.available 2008-11-14T10:21:17Z
dc.date.issued 2008-11
dc.identifier.citation Taviv, R. Wise, R, Van Der Merwe, M and Winkler, H. 2008. Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa. Science real and relevant: 2nd CSIR Biennial Conference, CSIR International Convention Centre Pretoria, 17 & 18 November 2008, pp 9 en
dc.identifier.uri http://hdl.handle.net/10204/2580
dc.description Science real and relevant: 2nd CSIR Biennial Conference, CSIR International Convention Centre Pretoria, 17 & 18 November 2008 en
dc.description.abstract The South African Government commissioned a detailed study entitled Long-Term Mitigation Scenarios (LTMS). This study defined and quantified the mitigation options and associated costs available under several energy and economic futures. Following a high-level process based on the outcomes of the LTMS, Cabinet adopted a vision, strategic direction and framework for policy on climate change mitigation. Most of the studies on mitigation costs focus on the energy sector, but less is known about the costs of mitigation in non-energy sectors. This is of particular importance in many developing countries where non-energy sectors are substantial contributors to national emissions. The non-energy sectors include waste management and several forms of land use: forestry, crop agriculture, animal management. The options for mitigation were assessed and prioritized. The following six options were selected for more detailed analysis: 1) increasing afforestation; 2) shifting to low or non-till farming practices; 3) changes in livestock management to reduce emissions from enteric fermentation; 4) improvements in manure management options; 5) fire control and 6) improved waste management. A spreadsheet-based financial model was developed to analyse annual and cumulative mitigation potential and costs of the mitigation options, compared to baseline scenario costs. Only CO2 and CH4 emissions were considered. Levelised annual costs, expressed as a marginal cost of CO2-eq reduction were calculated. The results showed that fire control is the most cost effective option per unit of avoided emission and has the highest mitigation potential. Fire control has a negative mitigation cost because of the cobenefits from reducing fire damage. Its mitigation potential is further enhanced by the concurrent process of bush encroachment, which provides a CO2 sink lasting several decades in the affected areas. Many recent studies have shown that actual levels of greenhouse gases (GHG) mitigation are far below the technical potential for existing mitigation options. The gap is caused by mitigation costs and other barriers. This study improved understanding of the mitigation potential and provided some quantitative assessment of the costs for the non-energy sector for South Africa. The study limitations were also described and areas of further research recommended en
dc.language.iso en en
dc.subject Greenhouse gas emissions en
dc.subject Nonenergy sources en
dc.subject Pollution en
dc.subject Goegraphy en
dc.title Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa en
dc.type Conference Presentation en
dc.identifier.apacitation Taviv, R., Wise, R., Van der Merwe, M. R., & Winkler, H. (2008). Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa. http://hdl.handle.net/10204/2580 en_ZA
dc.identifier.chicagocitation Taviv, R, R Wise, Martina R Van der Merwe, and H Winkler. "Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa." (2008): http://hdl.handle.net/10204/2580 en_ZA
dc.identifier.vancouvercitation Taviv R, Wise R, Van der Merwe MR, Winkler H, Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa; 2008. http://hdl.handle.net/10204/2580 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Taviv, R AU - Wise, R AU - Van der Merwe, Martina R AU - Winkler, H AB - The South African Government commissioned a detailed study entitled Long-Term Mitigation Scenarios (LTMS). This study defined and quantified the mitigation options and associated costs available under several energy and economic futures. Following a high-level process based on the outcomes of the LTMS, Cabinet adopted a vision, strategic direction and framework for policy on climate change mitigation. Most of the studies on mitigation costs focus on the energy sector, but less is known about the costs of mitigation in non-energy sectors. This is of particular importance in many developing countries where non-energy sectors are substantial contributors to national emissions. The non-energy sectors include waste management and several forms of land use: forestry, crop agriculture, animal management. The options for mitigation were assessed and prioritized. The following six options were selected for more detailed analysis: 1) increasing afforestation; 2) shifting to low or non-till farming practices; 3) changes in livestock management to reduce emissions from enteric fermentation; 4) improvements in manure management options; 5) fire control and 6) improved waste management. A spreadsheet-based financial model was developed to analyse annual and cumulative mitigation potential and costs of the mitigation options, compared to baseline scenario costs. Only CO2 and CH4 emissions were considered. Levelised annual costs, expressed as a marginal cost of CO2-eq reduction were calculated. The results showed that fire control is the most cost effective option per unit of avoided emission and has the highest mitigation potential. Fire control has a negative mitigation cost because of the cobenefits from reducing fire damage. Its mitigation potential is further enhanced by the concurrent process of bush encroachment, which provides a CO2 sink lasting several decades in the affected areas. Many recent studies have shown that actual levels of greenhouse gases (GHG) mitigation are far below the technical potential for existing mitigation options. The gap is caused by mitigation costs and other barriers. This study improved understanding of the mitigation potential and provided some quantitative assessment of the costs for the non-energy sector for South Africa. The study limitations were also described and areas of further research recommended DA - 2008-11 DB - ResearchSpace DP - CSIR KW - Greenhouse gas emissions KW - Nonenergy sources KW - Pollution KW - Goegraphy LK - https://researchspace.csir.co.za PY - 2008 T1 - Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa TI - Potential for, and costs of, reducing greenhouse gas emissions from nonenergy sources in South Africa UR - http://hdl.handle.net/10204/2580 ER - en_ZA


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