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Roadmap for achieving net-zero emissions in global food systems by 2050

Food systems (FSs) emit ~ 20 GtCO(2)e/y (~ 35% of global greenhouse gas emissions). This level tends to raise given the expected increases in food demands, which may threaten global climate targets. Through a rapid assessment, evaluating 60+ scenarios based on existing low-emission and carbon seques...

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Autores principales: Costa, Ciniro, Wollenberg, Eva, Benitez, Mauricio, Newman, Richard, Gardner, Nick, Bellone, Federico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9442557/
https://www.ncbi.nlm.nih.gov/pubmed/36065006
http://dx.doi.org/10.1038/s41598-022-18601-1
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author Costa, Ciniro
Wollenberg, Eva
Benitez, Mauricio
Newman, Richard
Gardner, Nick
Bellone, Federico
author_facet Costa, Ciniro
Wollenberg, Eva
Benitez, Mauricio
Newman, Richard
Gardner, Nick
Bellone, Federico
author_sort Costa, Ciniro
collection PubMed
description Food systems (FSs) emit ~ 20 GtCO(2)e/y (~ 35% of global greenhouse gas emissions). This level tends to raise given the expected increases in food demands, which may threaten global climate targets. Through a rapid assessment, evaluating 60+ scenarios based on existing low-emission and carbon sequestration practices, we estimate that intensifying FSs could reduce its emissions from 21.4 to − 2.0 GtCO(2)e/y and address increasing food demands without relying on carbon offsets (e.g., related to afforestation and reforestation programs). However, given historical trends and regional contexts, a more diverse portfolio of practices, including diet shifts and new-horizon technologies, will be needed to increase the feasibility of achieving net-zero FSs. One likely pathway consists of implementing practices that shift food production to the 30th-percentile of least emission-intensive FSs (~ 45% emissions reduction), sequester carbon at 50% of its potential (~ 5 GtCO(2)e/y) and adopt diet shifts and new-horizon technologies (~ 6 GtCO(2)e/y). For a successful transition to happen, the global FSs would, in the next decade (2020s), need to implement cost-effective mitigation practices and technologies, supported by improvements in countries’ governance and technical assistance, innovative financial mechanisms and research focused on making affordable technologies in the following two decades (2030–2050). This work provides options and a vision to guide global FSs to achieving net-zero by 2050.
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spelling pubmed-94425572022-09-06 Roadmap for achieving net-zero emissions in global food systems by 2050 Costa, Ciniro Wollenberg, Eva Benitez, Mauricio Newman, Richard Gardner, Nick Bellone, Federico Sci Rep Article Food systems (FSs) emit ~ 20 GtCO(2)e/y (~ 35% of global greenhouse gas emissions). This level tends to raise given the expected increases in food demands, which may threaten global climate targets. Through a rapid assessment, evaluating 60+ scenarios based on existing low-emission and carbon sequestration practices, we estimate that intensifying FSs could reduce its emissions from 21.4 to − 2.0 GtCO(2)e/y and address increasing food demands without relying on carbon offsets (e.g., related to afforestation and reforestation programs). However, given historical trends and regional contexts, a more diverse portfolio of practices, including diet shifts and new-horizon technologies, will be needed to increase the feasibility of achieving net-zero FSs. One likely pathway consists of implementing practices that shift food production to the 30th-percentile of least emission-intensive FSs (~ 45% emissions reduction), sequester carbon at 50% of its potential (~ 5 GtCO(2)e/y) and adopt diet shifts and new-horizon technologies (~ 6 GtCO(2)e/y). For a successful transition to happen, the global FSs would, in the next decade (2020s), need to implement cost-effective mitigation practices and technologies, supported by improvements in countries’ governance and technical assistance, innovative financial mechanisms and research focused on making affordable technologies in the following two decades (2030–2050). This work provides options and a vision to guide global FSs to achieving net-zero by 2050. Nature Publishing Group UK 2022-09-05 /pmc/articles/PMC9442557/ /pubmed/36065006 http://dx.doi.org/10.1038/s41598-022-18601-1 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Costa, Ciniro
Wollenberg, Eva
Benitez, Mauricio
Newman, Richard
Gardner, Nick
Bellone, Federico
Roadmap for achieving net-zero emissions in global food systems by 2050
title Roadmap for achieving net-zero emissions in global food systems by 2050
title_full Roadmap for achieving net-zero emissions in global food systems by 2050
title_fullStr Roadmap for achieving net-zero emissions in global food systems by 2050
title_full_unstemmed Roadmap for achieving net-zero emissions in global food systems by 2050
title_short Roadmap for achieving net-zero emissions in global food systems by 2050
title_sort roadmap for achieving net-zero emissions in global food systems by 2050
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9442557/
https://www.ncbi.nlm.nih.gov/pubmed/36065006
http://dx.doi.org/10.1038/s41598-022-18601-1
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