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dc.contributor.authorGelfand, I
dc.contributor.authorHamilton, SK
dc.contributor.authorKravchenko, AN
dc.contributor.authorJackson, RD
dc.contributor.authorThelen, KD
dc.contributor.authorRobertson, GP
dc.date.accessioned2020-08-06T00:43:19Z
dc.date.available2020-08-06T00:43:19Z
dc.date.issued2020
dc.identifier.issn0013-936X
dc.identifier.doi10.1021/acs.est.9b07019
dc.identifier.urihttp://hdl.handle.net/10072/396239
dc.description.abstractClimate mitigation scenarios limiting global temperature increases to 1.5 °C rely on decarbonizing vehicle transport with bioenergy production plus carbon capture and storage (BECCS), but climate impacts for producing different bioenergy feedstocks have not been directly compared experimentally or for ethanol vs electric light-duty vehicles. A field experiment at two Midwest U.S. sites on contrasting soils revealed that feedstock yields of seven potential bioenergy cropping systems varied substantially within sites but little between. Bioenergy produced per hectare reflected yields: miscanthus > poplar > switchgrass > native grasses ≈ maize stover (residue) > restored prairie ≈ early successional. Greenhouse gas emission intensities for ethanol vehicles ranged from 20 to −179 g CO2e MJ–1: maize stover ≫ miscanthus ≈ switchgrass ≈ native grasses ≈ poplar > early successional ≥ restored prairie; direct climate benefits ranged from ∼80% (stover) to 290% (restored prairie) reductions in CO2e compared to petroleum and were similar for electric vehicles. With carbon capture and storage (CCS), reductions in emission intensities ranged from 204% (stover) to 416% (restored prairie) for ethanol vehicles and from 329 to 558% for electric vehicles, declining 27 and 15%, respectively, once soil carbon equilibrates within several decades of establishment. Extrapolation based on expected U.S. transportation energy use suggests that, once CCS potential is maximized with CO2 pipeline infrastructure, negative emissions from bioenergy with CCS for light-duty electric vehicles could capture >900 Tg CO2e year–1 in the U.S. In the future, as other renewable electricity sources become more important, electricity production from biomass would offset less fossil fuel electricity, and the advantage of electric over ethanol vehicles would decrease proportionately.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofpagefrom2961
dc.relation.ispartofpageto2974
dc.relation.ispartofissue5
dc.relation.ispartofjournalEnvironmental Science and Technology
dc.relation.ispartofvolume54
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchcode41
dc.titleEmpirical Evidence for the Potential Climate Benefits of Decarbonizing Light Vehicle Transport in the U.S. With Bioenergy from Purpose-Grown Biomass with and without BECCS
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationGelfand, I; Hamilton, SK; Kravchenko, AN; Jackson, RD; Thelen, KD; Robertson, GP, Empirical Evidence for the Potential Climate Benefits of Decarbonizing Light Vehicle Transport in the U.S. With Bioenergy from Purpose-Grown Biomass with and without BECCS, Environmental Science and Technology, 2020, 54 (5), pp. 2961-2974
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2020-08-06T00:33:40Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2020. This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
gro.hasfulltextFull Text
gro.griffith.authorHamilton, Stephen K.


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