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DOI10.1007/s10584-020-02732-3
Quantifying the potential scale of mitigation deterrence from greenhouse gas removal techniques
McLaren D.
发表日期2020
ISSN0165-0009
起始页码2411
结束页码2428
卷号162期号:4
英文摘要Greenhouse gas removal (GGR) techniques appear to offer hopes of balancing limited global carbon budgets by removing substantial amounts of greenhouse gases from the atmosphere later this century. This hope rests on an assumption that GGR will largely supplement emissions reduction. The paper reviews the expectations of GGR implied by integrated assessment modelling, categorizes ways in which delivery or promises of GGR might instead deter or delay emissions reduction, and offers a preliminary estimate of the possible extent of three such forms of ‘mitigation deterrence’. Type 1 is described as ‘substitution and failure’: an estimated 50–229 Gt-C (or 70% of expected GGR) may substitute for emissions otherwise reduced, yet may not be delivered (as a result of political, economic or technical shortcomings, or subsequent leakage or diversion of captured carbon into short-term utilization). Type 2, described as ‘rebounds’, encompasses rebounds, multipliers, and side-effects, such as those arising from land-use change, or use of captured CO2 in enhanced oil recovery. A partial estimate suggests that this could add 25–134 Gt-C to unabated emissions. Type 3, described as ‘imagined offsets’, is estimated to affect 17–27% of the emissions reductions required, reducing abatement by a further 182–297 Gt-C. The combined effect of these unanticipated net additions of CO2 to the atmosphere is equivalent to an additional temperature rise of up to 1.4 °C. The paper concludes that such a risk merits further deeper analysis and serious consideration of measures which might limit the occurrence and extent of mitigation deterrence. © 2020, The Author(s).
英文关键词Climate modelling; Climate policy; Greenhouse gas removal; Mitigation deterrence
语种英语
scopus关键词Budget control; Carbon; Carbon dioxide; Emission control; Enhanced recovery; Greenhouse gases; Land use; Carbon budgets; Combined effect; Emissions reduction; Enhanced oil recovery; Integrated assessment modelling; Land-use change; Side effect; Temperature rise; Risk assessment; carbon budget; carbon dioxide; emission control; enhanced oil recovery; estimation method; greenhouse gas; land use change; leakage; mitigation
来源期刊Climatic Change
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/147045
作者单位Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
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McLaren D.. Quantifying the potential scale of mitigation deterrence from greenhouse gas removal techniques[J],2020,162(4).
APA McLaren D..(2020).Quantifying the potential scale of mitigation deterrence from greenhouse gas removal techniques.Climatic Change,162(4).
MLA McLaren D.."Quantifying the potential scale of mitigation deterrence from greenhouse gas removal techniques".Climatic Change 162.4(2020).
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