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Figure 8. Decomposition factors of CH emission decoupling in the B&R countries. (A) PBEs; (B) CBEs.
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From a consumption-based perspective, CH emissions in the B&R countries also grew rapidly from 2005 to
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2013, faster than PBEs, but the growth rate slowed from 2013 to 2021. Similarly, the economic level and
population size drove emissions upward, while emission intensity remained a key factor in reduction, with
its largest contribution in 2005-2009 (-16.92%), decreasing to -5.60% in 2017-2021. The contribution of
industrial structure to emission reduction also declined over time. Detailed country-level production- and
consumption-based CH emission decomposition are provided in Supplementary Tables 4 and 5.
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