期刊
NATURE CLIMATE CHANGE
卷 12, 期 1, 页码 22-29出版社
NATURE PORTFOLIO
DOI: 10.1038/s41558-021-01250-z
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Border carbon adjustments are a measure to address carbon leakage and competitiveness concerns, but their viability is substantially reduced due to current legal and practical implementation constraints.
Harmonized carbon pricing across borders is hard to achieve in the real world as carbon leakage can reduce the cost-effectiveness of unilateral approaches to reduce global emissions. To address this problem, border carbon adjustments (BCAs) would apply the domestic carbon price to emissions embodied in traded goods, which levels the playing field for emissions-intensive and trade-exposed industries. Here, we review the potential environmental and economic impact of border carbon adjustments on leakage reduction, competitiveness restoration, cost-effectiveness, equity and cooperation enhancement. We find that the viability of border carbon adjustment schemes can be substantially reduced with the current legal and practical implementation constraints. Border carbon adjustments are appraised as a measure to address carbon leakage and competitiveness concerns. This Review Article discusses the possible impacts, as well as practical challenges for implementation.
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