globalchange  > 气候减缓与适应
DOI: 10.1007/s10584-017-2032-y
Scopus记录号: 2-s2.0-85027516836
论文题名:
Commentary on “carbon balance effects of US biofuel production and use,” by DeCicco et al. (2016)
作者: De Kleine R.D.; Wallington T.J.; Anderson J.E.; Kim H.C.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2017
卷: 144, 期:2
起始页码: 111
结束页码: 119
语种: 英语
Scopus关键词: Agriculture ; Aluminum ; Carbon dioxide ; Combustion ; Forestry ; Global warming ; Greenhouse gases ; Land use ; Life cycle ; Agricultural productions ; Biofuel production ; Carbon combustion ; Empirical assessment ; Global warming impact ; International regulations ; Life Cycle Assessment (LCA) ; Net ecosystem production ; Biofuels ; agricultural production ; biofuel ; carbon budget ; carbon dioxide ; carbon emission ; global warming ; life cycle analysis ; net ecosystem production ; regulatory framework ; United States
英文摘要: In their recent publication “Carbon balance effects of U.S. biofuel production and use,” DeCicco et al. present an empirical assessment of net CO2 emission effects over the period 2005–2013 after the US renewable fuel standard (RFS) came into existence and conclude that biofuels have resulted in a net increase in CO2 emissions over the period. The analysis presented by DeCicco et al. relies on three key assertions. First, that if biofuel carbon combustion emissions are not completely offset by additional net ecosystem production (NEP), then the biofuel should not receive full biogenic carbon credit. Second, that changes in agricultural NEP related to biofuel production can be accurately estimated from national-level agricultural production statistics. Third, that agricultural NEP is a pertinent measure of biofuel global warming impacts. We show that following the conventional definition of NEP the combustion of biofuel by definition leads to an exactly equal increase in NEP; therefore, the first assertion is not meaningful. Regarding the second assertion, we show that estimation of biofuel-related NEP changes from agricultural production statistics is not a robust methodology. Finally, we argue that agricultural NEP is an important parameter for estimating land-use change effects, but in isolation is an irrelevant GHG metric for current biofuels. We find that the conclusions above from DeCicco et al. are unfounded and do not invalidate the application of biogenic carbon offsets in life cycle assessments of biofuels currently used in national and international regulations. © 2017, Springer Science+Business Media B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83944
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: Research & Advanced Engineering, Ford Motor Company, Dearborn, MI, United States

Recommended Citation:
De Kleine R.D.,Wallington T.J.,Anderson J.E.,et al. Commentary on “carbon balance effects of US biofuel production and use,” by DeCicco et al. (2016)[J]. Climatic Change,2017-01-01,144(2)
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