负排放对我国实现2060年碳中和的作用 目标

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摘要翻译：
中国承诺在2060年前实现碳中和，这是一个雄心勃勃的目标，可以为世界提供急需的领导，指导如何在本世纪末将全球变暖限制在比工业化前水平高1.5摄氏度的水平。但到2060年实现净零排放的途径仍不清楚，包括负排放技术的作用。我们使用全球变化分析模型来模拟负排放技术，特别是直接空气捕获(DAC)如何有助于中国实现这一目标。我们的结果表明，负排放可以发挥很大作用，每年从货运和重工业等难以缓解的部门抵消约3千兆吨二氧化碳。这包括发援会每年高达1.6GtCO2的贡献，占中国预计总负排放量的60%。但是，与碳捕获、储存和植树造林的生物能源一样，发援会尚未在任何地方得到证明，达到有意义地为气候缓解做出贡献所需的规模。以这种规模部署蚊帐将对中国的金融系统和自然资源（如水、土地和能源）产生广泛影响。
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英文标题：
《The role of negative emissions in meeting China's 2060 carbon neutrality
  goal》
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作者：
Jay Fuhrman (1,2), Andres F. Clarens (1), Haewon McJeon (2), Pralit
  Patel (2), Scott C. Doney (3), William M. Shobe (4), Shreekar Pradhan (1)
  ((1) Department of Engineering Systems and Environment, University of
  Virginia, Charlottesville, Virginia, USA (2) Joint Global Change Research
  Institute, University of Maryland and Pacific Northwest National Laboratory,
  College Park, Maryland, USA (3) Department of Environmental Sciences,
  University of Virginia, Charlottesville, Virginia, USA (4) Batten School of
  Leadership and Public Policy, University of Virginia, Charlottesville,
  Virginia, USA)
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最新提交年份：
2021
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分类信息：

一级分类：Economics        经济学
二级分类：General Economics        一般经济学
分类描述：General methodological, applied, and empirical contributions to economics.
对经济学的一般方法、应用和经验贡献。
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一级分类：Quantitative Finance        数量金融学
二级分类：Economics        经济学
分类描述：q-fin.EC is an alias for econ.GN. Economics, including micro and macro economics, international economics, theory of the firm, labor economics, and other economic topics outside finance
q-fin.ec是econ.gn的别名。经济学，包括微观和宏观经济学、国际经济学、企业理论、劳动经济学和其他金融以外的经济专题
--

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英文摘要：
  China's pledge to reach carbon neutrality before 2060 is an ambitious goal and could provide the world with much-needed leadership on how to limit warming to +1.5C warming above pre-industrial levels by the end of the century. But the pathways that would achieve net zero by 2060 are still unclear, including the role of negative emissions technologies. We use the Global Change Analysis Model to simulate how negative emissions technologies, in general, and direct air capture (DAC) in particular, could contribute to China's meeting this target. Our results show that negative emissions could play a large role, offsetting on the order of 3 GtCO2 per year from difficult-to-mitigate sectors such as freight transportation and heavy industry. This includes up to a 1.6 GtCO2 per year contribution from DAC, constituting up to 60% of total projected negative emissions in China. But DAC, like bioenergy with carbon capture and storage and afforestation, has not yet been demonstrated at anywhere approaching the scales required to meaningfully contribute to climate mitigation. Deploying NETs at these scales will have widespread impacts on financial systems and natural resources such as water, land, and energy in China.
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PDF链接：
https://arxiv.org/pdf/2010.06723

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关键词：Contribution Technologies Quantitative environment Engineering 分析模型 But 世界 capture 所需