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Trends in Global Greenhouse Gas Emissions from 1990 to 2010

机译:1990年至2010年全球温室气体排放趋势

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摘要

Anthropogenic carbon dioxide emissions are known to alter hydrological cycles, disrupt marine ecosystems and species lifecycles, and cause global habitat loss. In this study, we use a comprehensive global input-output database to assess the driving forces underlying the change in global CO_2 emissions from 1990 to 2010. We decompose the change in emissions for the 20 year period into six mutually exclusive causal determinants. Our assessment of trends in fuel-use reveals that a 10.8 Peta-gram (Pg) rise in emissions from 1990 to 2010 constitutes emissions from the consumption of coal (49%), petroleum (25%), natural gas (17%), and biomass (9%). We demonstrate that affluence (per-capita consumption) and population growth are outpacing any improvements in carbon efficiency in driving up emissions worldwide. Our results suggest that supply chain measures to improve technological efficiency are not sufficient to reduce emissions. To achieve significant emission savings, policy makers need to address the issue of affluence. We argue that policies to address unsustainable lifestyles and consumer behavior are largely unheard of, and governments may need to actively intervene in nonsustainable lifestyles to achieve emission reductions. The results presented in this paper are vital for informing future policy decisions for mitigating climate change.
机译:人为排放的二氧化碳已知会改变水文循环,破坏海洋生态系统和物种生命周期,并造成全球生境丧失。在这项研究中,我们使用一个全面的全球投入产出数据库来评估1990年至2010年全球CO_2排放变化的潜在驱动力。我们将20年期间的排放变化分解为六个互斥的因果决定因素。我们对燃料使用趋势的评估表明,从1990年到2010年,排放量增加了10.8皮克(Pg),构成了以下方面的消耗:煤炭(49%),石油(25%),天然气(17%),和生物质(9%)。我们证明,富裕(人均消费)和人口增长在提高全球碳排放量方面超过了碳效率的任何提高。我们的结果表明,提高技术效率的供应链措施不足以减少排放。为了节省大量排放,决策者需要解决富裕问题。我们认为,解决不可持续生活方式和消费者行为的政策在很大程度上是闻所未闻的,政府可能需要积极干预不可持续生活方式,以实现减排。本文提出的结果对于为减轻气候变化的未来政策决策提供信息至关重要。

著录项

  • 来源
    《Environmental Science & Technology》 |2016年第9期|4722-4730|共9页
  • 作者单位

    ISA, School of Physics A28, The University of Sydney, Sydney, New South Wales 2006, Australia;

    ISA, School of Physics A28, The University of Sydney, Sydney, New South Wales 2006, Australia;

    ISA, School of Physics A28, The University of Sydney, Sydney, New South Wales 2006, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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