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Infrastructure Shapes Differences in the Carbon Intensities of Chinese Cities
Bo Zheng1, Qiang Zhang2, Steven J Davis2,3,4
1State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , China.
Environmental Science & Technology
|April 26, 2018
Summary
China
Area of Science:
- Environmental Science
- Economics
- Urban Studies
Background:
- Carbon intensity (CO2 emissions per unit GDP) varies globally.
- City-level carbon intensity data is scarce, hindering analysis.
- China's urban emissions are critical for climate targets.
Purpose of the Study:
- To create a detailed emissions inventory for 337 Chinese cities in 2013.
- To evaluate inter-city variations in carbon intensity.
- To identify the drivers behind these disparities.
Main Methods:
- Compilation of a novel emissions inventory for 337 Chinese cities.
- Analysis of carbon intensity (kgCO2 per $GDP) across cities.
- Assessment of economic structure and technological factors influencing carbon intensity.
Main Results:
- Average Chinese city carbon intensity is 0.84 kgCO2 per $GDP.
- Significant range observed: 0.09 to 7.86 kgCO2 per $GDP.
- Economic structure, driven by past investment, is the primary cause of variation.
Conclusions:
- "Carbon lock-in" from past development may impede emission reductions.
- Transitioning from investment-led to consumption-led growth is key.
- Policy interventions are crucial for China's economic and climate goals.
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