Journal
JOURNAL OF CLEANER PRODUCTION
Volume 243, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2019.118558
Keywords
Carbon emissions; Random forests; Improved general regression neural network; Scenario analysis
Categories
Funding
- 2018 Key Projects of Philosophy and Social Sciences Research, Ministry of Education, China [18JZD032]
- 111 Project, Ministry of Science and Technology of People's Republic of China [B18021]
- Natural Science Foundation of China [71804045]
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To determine whether China can achieve the commitment of reducing carbon emission intensity in 2030, a general regression neural network (GRNN) forecasting model based on improved fireworks algorithm (IFWA) optimization is constructed to forecast total carbon emissions (TCE) and carbon emissions intensity (CEI) in 2016-2040. Random forests (RF) method is used to select the important carbon emissions influencing factors to reduce data redundancy. The superiority of IFWA-GRNN forecasting model is verified by historical data from 1990 to 2015. The basic as usual (BAU), policy tightening (PT) and market allocation (ML) scenarios are set to forecast the TCE and CEI. The results show that under the BAU scenario, China's CEI reduction commitments in 2020 (40%-45%) can be achieved, but the commitment in 2030 (60%-65%) cannot be achieved. Under the PT and ML scenarios, China can achieve its CEI commitments in 2030, and the TCE will decrease gradually after reaching its peak in 2030. Under the existing macro development planning and policy intensity in China, there are still certain pressures to achieve CEI reduction targets. It is necessary to implement policy adjustment and market mechanism incentives for both energy supply and consumption, optimize power supply structure, promote electric energy substitution, and accelerate the construction of a unified national electricity market, carbon market, etc. (C) 2019 Elsevier Ltd. All rights reserved.
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