Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits
[Image: see text] Sustainable aviation fuel (SAF) can reduce aviation’s CO(2) and non-CO(2) impacts. We quantify the change in contrail properties and climate forcing in the North Atlantic resulting from different blending ratios of SAF and demonstrate that intelligently allocating the limited SAF s...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730838/ http://www.ncbi.nlm.nih.gov/pubmed/36394538 https://doi.org/10.1021/acs.est.2c05781 |
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ftpubmed:oai:pubmedcentral.nih.gov:9730838 2023-05-15T17:34:02+02:00 Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits Teoh, Roger Schumann, Ulrich Voigt, Christiane Schripp, Tobias Shapiro, Marc Engberg, Zebediah Molloy, Jarlath Koudis, George Stettler, Marc E. J. 2022-11-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730838/ http://www.ncbi.nlm.nih.gov/pubmed/36394538 https://doi.org/10.1021/acs.est.2c05781 en eng American Chemical Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730838/ http://www.ncbi.nlm.nih.gov/pubmed/36394538 http://dx.doi.org/10.1021/acs.est.2c05781 © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). CC-BY Environ Sci Technol Text 2022 ftpubmed https://doi.org/10.1021/acs.est.2c05781 2022-12-11T02:16:20Z [Image: see text] Sustainable aviation fuel (SAF) can reduce aviation’s CO(2) and non-CO(2) impacts. We quantify the change in contrail properties and climate forcing in the North Atlantic resulting from different blending ratios of SAF and demonstrate that intelligently allocating the limited SAF supply could multiply its overall climate benefit by factors of 9–15. A fleetwide adoption of 100% SAF increases contrail occurrence (+5%), but lower nonvolatile particle emissions (−52%) reduce the annual mean contrail net radiative forcing (−44%), adding to climate gains from reduced life cycle CO(2) emissions. However, in the short term, SAF supply will be constrained. SAF blended at a 1% ratio and uniformly distributed to all transatlantic flights would reduce both the annual contrail energy forcing (EF(contrail)) and the total energy forcing (EF(total), contrails + change in CO(2) life cycle emissions) by ∼0.6%. Instead, targeting the same quantity of SAF at a 50% blend ratio to ∼2% of flights responsible for the most highly warming contrails reduces EF(contrail) and EF(total) by ∼10 and ∼6%, respectively. Acknowledging forecasting uncertainties, SAF blended at lower ratios (10%) and distributed to more flights (∼9%) still reduces EF(contrail) (∼5%) and EF(total) (∼3%). Both strategies deploy SAF on flights with engine particle emissions exceeding 10(12) m(–1), at night-time, and in winter. Text North Atlantic PubMed Central (PMC) Environmental Science & Technology 56 23 17246 17255 |
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[Image: see text] Sustainable aviation fuel (SAF) can reduce aviation’s CO(2) and non-CO(2) impacts. We quantify the change in contrail properties and climate forcing in the North Atlantic resulting from different blending ratios of SAF and demonstrate that intelligently allocating the limited SAF supply could multiply its overall climate benefit by factors of 9–15. A fleetwide adoption of 100% SAF increases contrail occurrence (+5%), but lower nonvolatile particle emissions (−52%) reduce the annual mean contrail net radiative forcing (−44%), adding to climate gains from reduced life cycle CO(2) emissions. However, in the short term, SAF supply will be constrained. SAF blended at a 1% ratio and uniformly distributed to all transatlantic flights would reduce both the annual contrail energy forcing (EF(contrail)) and the total energy forcing (EF(total), contrails + change in CO(2) life cycle emissions) by ∼0.6%. Instead, targeting the same quantity of SAF at a 50% blend ratio to ∼2% of flights responsible for the most highly warming contrails reduces EF(contrail) and EF(total) by ∼10 and ∼6%, respectively. Acknowledging forecasting uncertainties, SAF blended at lower ratios (10%) and distributed to more flights (∼9%) still reduces EF(contrail) (∼5%) and EF(total) (∼3%). Both strategies deploy SAF on flights with engine particle emissions exceeding 10(12) m(–1), at night-time, and in winter. |
format |
Text |
author |
Teoh, Roger Schumann, Ulrich Voigt, Christiane Schripp, Tobias Shapiro, Marc Engberg, Zebediah Molloy, Jarlath Koudis, George Stettler, Marc E. J. |
spellingShingle |
Teoh, Roger Schumann, Ulrich Voigt, Christiane Schripp, Tobias Shapiro, Marc Engberg, Zebediah Molloy, Jarlath Koudis, George Stettler, Marc E. J. Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
author_facet |
Teoh, Roger Schumann, Ulrich Voigt, Christiane Schripp, Tobias Shapiro, Marc Engberg, Zebediah Molloy, Jarlath Koudis, George Stettler, Marc E. J. |
author_sort |
Teoh, Roger |
title |
Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
title_short |
Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
title_full |
Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
title_fullStr |
Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
title_full_unstemmed |
Targeted Use of Sustainable Aviation Fuel to Maximize Climate Benefits |
title_sort |
targeted use of sustainable aviation fuel to maximize climate benefits |
publisher |
American Chemical Society |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730838/ http://www.ncbi.nlm.nih.gov/pubmed/36394538 https://doi.org/10.1021/acs.est.2c05781 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environ Sci Technol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9730838/ http://www.ncbi.nlm.nih.gov/pubmed/36394538 http://dx.doi.org/10.1021/acs.est.2c05781 |
op_rights |
© 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.1021/acs.est.2c05781 |
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Environmental Science & Technology |
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56 |
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23 |
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17246 |
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17255 |
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1766132722072289280 |