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Structural analysis of indirect carbon emissions embodied in intermediate input between Chinese sectors: a complex
Ning Ma1,2,3, Huajiao Li4,5,6, Renwu Tang7
1School of Economics and Management, China University of Geosciences, Beijing, 100083, China.
Environmental Science and Pollution Research International
|April 27, 2019
Summary
Indirect carbon emissions from intermediate inputs significantly exceed direct emissions in China, highlighting the need for targeted reduction strategies. Analyzing the indirect carbon emissions flow network (ICEFN) reveals key sectors and paths for effective emission control.
Area of Science:
- Environmental Science
- Economics
- Network Theory
Background:
- Indirect carbon emissions from intermediate inputs are crucial for assessing producer responsibility.
- Understanding the structure of indirect carbon emissions flow networks (ICEFN) aids in identifying key areas for emission reduction efforts.
Purpose of the Study:
- To analyze indirect carbon emissions embodied in intermediate inputs between sectors.
- To explore the distribution structure of China's indirect carbon emissions flow network (ICEFN).
Main Methods:
- Modified input-output model.
- Complex network theory.
- Construction of four directed and weighted ICEFNs for 28 sectors (1997-2012).
Main Results:
- Indirect carbon emissions constitute nearly 70% of China's total carbon emissions.
- Embodied carbon emission intensity (ECI) is decreasing but at a diminishing rate, indicating increasing difficulty in reductions.
- Key sectors and critical paths within the ICEFN were identified, revealing inter-sectoral dependencies.
Conclusions:
- Indirect emissions are a dominant component of national carbon footprints.
- Policy recommendations are derived from the structural analysis of ICEFNs to guide emission reduction efforts.
- Targeted interventions in key sectors and along critical pathways are essential for effective carbon management.
Keywords:
ChinaComplex networkIndirect carbon emissionsInput-output tableModified non-competitive input-output analysisSectorsMore Related Videos
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