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Visual Analysis of Global Carbon Mitigation Research Based on Scientific Knowledge Graphs
Na Su1, Zhenbo Wang1,2
1Key Laboratory of Regional Sustainable Development Modeling, Chinese Academy of Sciences, Beijing 100101, China.
Summary
Global carbon mitigation research shows increasing annual output, with the United States as a leading contributor. Key research areas are evolving, with future focus on ocean carbon sinks and carbon-negative technologies.
Area of Science:
- Environmental Science
- Climate Change Research
- Bibliometrics
Background:
- Global temperature change necessitates urgent carbon mitigation and greenhouse gas control strategies.
- Understanding the foundational knowledge, research hotspots, and evolving trends in carbon mitigation is crucial.
Purpose of the Study:
- To analyze the spatio-temporal distribution, country distribution, research hotspots, and cooperation networks in global carbon mitigation.
- To identify key scholars, influential literature, and leading institutions in the field.
- To map the frontier knowledge and display the evolution of carbon mitigation research.
Main Methods:
- Bibliometric analysis of 15,304 articles from Web of Science (1991-2021).
- Utilized scientific knowledge mapping software, including CiteSpace and Gephi.
- Conducted spatio-temporal distribution, country distribution, and cooperation network analysis.
Main Results:
- Annual research output on carbon mitigation has steadily increased, exhibiting four developmental stages: germination, low-speed, medium-speed, and high-speed development.
- Research distribution is geographically uneven, dominated by a 'one super, many strong' pattern centered on the United States.
- Research hotspots have evolved from initial phenomenon analysis and policy guidance to method exploration and mechanism improvement.
Conclusions:
- The field of carbon mitigation research is dynamic and expanding, with significant contributions from leading nations.
- Future research directions may concentrate on ocean carbon sinks, carbon trading mechanisms, and carbon-negative technologies.
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