Embodied carbon emissions in the supply chains of multinational enterprises
Embodied carbon emissions in the supply chains of multinational enterprises
复制标题
跨国企业供应链隐含碳排放
DOI：
10.1038/s41558-020-0895-9
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发表时间：
2020
影响因子：
30.7
通讯作者：
Huibin Du
中科院分区：
文献类型：
--
作者：
Zengkai Zhang;Dabo Guan;Ran Wang;Jing Meng;Heran Zheng;Kunfu Zhu;Huibin Du
企业处于气候行动的前沿，跨国企业(MNE)从事外国直接投资，使它们能够对整个供应链产生重大影响。然而，跨国公司的国际供应链所体现的排放却鲜为人知。在这里，我们追踪跨国公司外国附属公司的碳足迹，并表明全球通过投资转移的碳总量在2011年达到顶峰，主要是由于碳强度的下降。尽管发达国家跨国公司的碳足迹在下降，但来自中国大陆的碳转移显著增加。我们提出了一个基于投资的会计框架，将跨国公司的碳足迹分配给投资国。以投资为基础的排放核算可以为有针对性和有效的气候政策和行动提供信息。例如，一些大型跨国公司在碳转移中发挥着至关重要的作用，因此它们的发起国应该作为投资者承担更多的碳减排责任。
Enterprises are at the forefront of climate actions and multinational enterprises (MNEs) engage in foreign direct investment, allowing them substantial influence over the entire supply chain. Yet emissions embodied in the international supply chains of MNEs are poorly known. Here we trace the carbon footprints of foreign affiliates of MNEs and show that the gross volume of global carbon transfer through investment peaked in 2011, mainly driven by the decline in carbon intensity. Despite declining carbon footprints of developed country-based MNEs, there has been a notable increase in carbon transfer sourced from the Chinese mainland. We propose an investment-based accounting framework to allocate carbon footprints of MNEs to the investing country. Investment-based accounting of emissions could inform targeted and effective climate policies and actions. For instance, some large MNEs play a crucial role in carbon transfer, therefore their originating country should bear more responsibilities of carbon emission reduction as an investor.