Regional implications of carbon dioxide removal in meeting net zero targets for the United States

Regional implications of carbon dioxide removal in meeting net zero targets for the United States
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二氧化碳清除对美国实现净零排放目标的区域影响

DOI:
10.1088/1748-9326/aced18
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发表时间:
2023
影响因子:
6.7
通讯作者:
Clarens, Andrés
Clarens, Andrés
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Fauvel, Chloé;Fuhrman, Jay;Ou, Yang;Shobe, William;Doney, Scott;McJeon, Haewon;Clarens, Andrés

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温室气体净零排放目标是当前稳定全球气候的国际努力的核心,其中许多计划依赖于二氧化碳消除(CDR)来实现本世纪中叶的目标。CDR可以通过自然方法,如植树造林,或工程方法,如直接空气捕获。这两者都将在它们所在的地区产生巨大影响。我们使用美国的全球变化分析模型来分析区域资源将如何影响美国国家净零目标的CDR部署以及如何受到CDR的影响。我们的模型表明,CDR将在全国范围内广泛部署,但并不均衡。美国多个州拥有成为负排放净出口国所需的资源,如地质碳储存能力和农业用地。但这将需要重新分配天然气和电力等资源,并大幅增加许多地方的水和化肥使用量。对与CDR相关的这些区域或国家以下级别的影响进行建模,就像现在这样本质上不确定,对于理解其在履行脱碳承诺方面的真正潜力至关重要。
Net-zero greenhouse gas emission targets are central to current international efforts to stabilize global climate, and many of these plans rely on carbon dioxide removal (CDR) to meet mid-century goals. CDR can be performed via nature-based approaches, such as afforestation, or engineered approaches, such as direct air capture. Both will have large impacts in the regions where they are sited. We used the Global Change Analysis Model for the United States to analyze how regional resources will influence and be influenced by CDR deployment in service of United States national net-zero targets. Our modeling suggests that CDR will be deployed extensively, but unevenly, across the country. A number of US states have the resources, such as geologic carbon storage capacity and agricultural land, needed to become net exporters of negative emissions. But this will require reallocation of resources, such as natural gas and electricity, and dramatically increase water and fertilizer use in many places. Modeling these kinds of regional or sub-national impacts associated with CDR, as intrinsically uncertain as it is at this time, is critical for understanding its true potential in meeting decarbonization commitments.
DOI: --
发表时间: 2021
期刊:
影响因子: --
作者:
Tjitske Berends;S. Boerma;J. Doornebal;B. Dikkeschei;C. Stegeman;T. Veneman
通讯作者: T. Veneman
DOI: 10.1038/s41558-021-01245-w
发表时间: 2021-12-20
影响因子: 30.7
作者:
Fankhauser, Sam;Smith, Stephen M.;Wetzer, Thom
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DOI: --
发表时间: 2021
影响因子: 3.9
作者:
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国家科学院
DOI: 10.1057/978-1-349-95988-4_633
发表时间: 2020
期刊: The Grants Register 2021
影响因子: --
作者:
Kenneth D. Skinner;M. A. Maupin
通讯作者: M. A. Maupin
DOI: 10.1088/2516-1083/abf1ce
发表时间: 2021-03
期刊: Progress in Energy
影响因子: --
作者:
N. McQueen;Katherine Vaz Gomes;Colin McCormick;Katherine Blumanthal;Max Pisciotta;J. Wilcox
通讯作者: N. McQueen;Katherine Vaz Gomes;Colin McCormick;Katherine Blumanthal;Max Pisciotta;J. Wilcox