Land-use emissions embodied in international trade

作者：Chaopeng Hong, Hongyan Zhao, Yue Qin, Jennifer Burney, Julia Pongratz, Kerstin Hartung, Yu Liu, Frances C. Moore, Robert B. Jackson, Qiang Zhang, Steven J. Davis · 发表于：Science · 年份：2022 · DOI：10.1126/science.abj1572 · 被引用次数：202 · 研究领域：Environmental Impact and Sustainability、Agriculture Sustainability and Environmental Impact、Energy, Environment, Economic Growth

International trade separates consumption of goods from related environmental impacts, including greenhouse gas emissions from agriculture and land-use change (together referred to as "land-use emissions"). Through use of new emissions estimates and a multiregional input-output model, we evaluated land-use emissions embodied in global trade from 2004 to 2017. Annually, 27% of land-use emissions and 22% of agricultural land are related to agricultural products ultimately consumed in a different region from where they were produced. Roughly three-quarters of embodied emissions are from land-use change, with the largest transfers from lower-income countries such as Brazil, Indonesia, and Argentina to more industrialized regions such as Europe, the United States, and China. Mitigation of global land-use emissions and sustainable development may thus depend on improving the transparency of supply chains.