通过全球可再生能源价值链追踪金属足迹
Rao Fu1, Kun Peng1, Peng Wang2
1Institute of Blue and Green Development, Shandong University, Weihai, 264209, P. R. China.
Nature communications
|June 22, 2023
概括
从2005年至2015年,全球可再生能源需求从2005年至2015年增长了97%,增加了金属足迹. 发达国家在海上金属密集型生产,需要更绿色的供应链,以实现公正的能源转型.
科学领域:
- 环境科学 环境科学
- 经济学 经济学 经济学
- 材料科学 材料科学 材料科学
背景情况:
- 可再生能源行业的快速增长推动了对关键金属的需求.
- 全球可再生能源价值链 (RPVCs) 是复杂的,涉及不同的经济体.
- 鉴定可再生能源的金属供应是具有挑战性的,因为复杂的价值链.
研究的目的:
- 在全球可再生能源行业中追踪金属足迹 (MF) 和增值.
- 分析RPVC的金属流量和经济贡献.
- 在可再生能源转型中,为可持续金属采购的战略提供信息.
主要方法:
- 使用了多区域输入输出 (MRIO) 模型.
- 使用价值链分解分析.
- 主要经济体可再生能源部门的量化金属足迹和附加值 (2005-2015).
主要成果:
- 在2005年至2015年期间,全球可再生能源需求的金属足迹增加了97%.
- 发达经济体主导高价值部门,而发展中国家则处理金属密集型,低价值生产.
- 中国日益增长的可再生能源电力需求对体现金属转移做出了重大贡献.
结论:
- 迫切需要在可再生能源部门建立高效的金属和绿色供应链.
- 建立可持续的上游和下游流程对于公正的能源转型至关重要.
- 解决RPVC之间的金属强度差异对于全球可持续性至关重要.
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