| DOI: | 10.1007/s10584-017-2026-9
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| Scopus记录号: | 2-s2.0-85027505507
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| 论文题名: | Author’s response to commentary on “Carbon balance effects of U.S. biofuel production and use” |
| 作者: | DeCicco J.M.
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| 刊名: | Climatic Change
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| ISSN: | 0165-0009
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| EISSN: | 1573-1480
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| 出版年: | 2017
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| 卷: | 144, 期:2 | | 起始页码: | 123
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| 结束页码: | 129
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| 语种: | 英语
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| Scopus关键词: | Carbon dioxide
; Fossil fuels
; Fuels
; Life cycle
; Biofuel production
; Carbon balance
; Carbon dioxide emissions
; Carbon exchange
; Carbon neutrals
; Life cycle analysis
; System boundary
; Terrestrial carbon cycle
; Biofuels
; biofuel
; carbon cycle
; carbon dioxide
; carbon emission
; estimation method
; fossil fuel
; life cycle analysis
; oil production
; United States
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| 英文摘要: | The impact of substituting biofuels for fossil fuels on carbon dioxide (CO2) emissions has been debated for many years. A reason for the lack of resolution is that the method widely used to address the question, lifecycle analysis (LCA), is subjective. Its results irreducibly depend on untestable assumptions, notably those pertaining to system boundaries but also those for representing market effects. The best one can do is empirically constrain estimates of net CO2 impact using data that characterize important aspects of the overall system. Our 2016 paper, “Carbon balance effects of U.S. biofuel production and use,” took such an approach, using field data to estimate the direct CO2 exchanges for a circumscribed vehicle-fuel system over the 2005–2013 period of expanding US biofuel use. De Kleine and colleagues criticize our work because it does not follow LCA conventions, arguing in particular for the primacy of the assumption that biofuels are inherently carbon neutral. This response refutes their critique; it reminds readers why the lifecycle paradigm fails for a dynamic system involving the terrestrial carbon cycle, stresses the need to bound an analysis of key carbon exchanges, and explains why the circular logic of LCA can be so beguiling. © 2017, The Author(s). |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/83937
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| Appears in Collections: | 气候减缓与适应
气候变化事实与影响
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作者单位: | University of Michigan, Ann Arbor, MI, United States
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| Recommended Citation: | |
DeCicco J.M.. Author’s response to commentary on “Carbon balance effects of U.S. biofuel production and use”[J]. Climatic Change,2017-01-01,144(2)
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