Visualizing the Interconnections Among Climate Risks. Issue 2 (12th February 2019)

• Record Type: Journal Article
• Authors: Yokohata, T.; Tanaka, K.; Nishina, K.; Takahashi, K.; Emori, S.; Kiguchi, M.; Iseri, Y.; Honda, Y.; Okada, M.; Masaki, Y.; Yamamoto, A.; Shigemitsu, M.; Yoshimori, M.; Sueyoshi, T.; Iwase, K.; Hanasaki, N.; Ito, A.; Sakurai, G.; Iizumi, T.; Nishimori, M.; Lim, W. H.; Miyazaki, C.; Okamoto, A.; Kanae, S.; Oki, T.
• Is Part Of: Earth's future. Volume 7:Issue 2(2019)
• Page Start: 85
• Page End: 100
• Publication Date: 2019-02-12
• Subjects: climate change -- risk -- interconnection -- visualization -- network diagram -- climate risk communication; Environmental sciences -- Periodicals; Environmental sciences; Periodicals; 550
• DOI: 10.1029/2018EF000945
• Languages: English
• ISSNs: 2328-4277

Abstract

Abstract: It is now widely recognized that climate change affects multiple sectors in virtually every part of the world. Impacts on one sector may influence other sectors, including seemingly remote ones, which we call "interconnections of climate risks." While a substantial number of climate risks are identified in the Intergovernmental Panel on Climate Change Fifth Assessment Report, there have been few attempts to explore the interconnections between them in a comprehensive way. To fill this gap, we developed a methodology for visualizing climate risks and their interconnections based on a literature survey. Our visualizations highlight the need to address climate risk interconnections in impact and vulnerability studies. Our risk maps and flowcharts show how changes in climate impact natural and socioeconomic systems, ultimately affecting human security, health, and well‐being. We tested our visualization approach with potential users and identified likely benefits and issues. Our methodology can be used as a communication tool to inform decision makers, stakeholders, and the general public of the cascading risks that can be triggered by climate change. Plain Language Summary: The paper demonstrates in a most holistic manner how climate change can generate various risks and how they are actually interconnected. Based on a literature survey using the Intergovernmental Panel on Climate Change Fifth Assessment Report, we identified 91 climate risks and 253 causal relationships among them and graphically drew such interconnected risks. We found that changes in the climate system impact the natural and socioeconomic system, influencing ultimately human security, health, and well‐being. This indicates that climate change can trigger a cascade of impacts across sectors. Our findings point to the need to address the climate risk interconnections in impact and vulnerability studies. We tested our visualization approach with potential users and identified likely benefits and issues. The implications of our study go beyond science. Our study is useful to inform stakeholders of a broad yet fresh perspective of climate risks that have not been presented before. Key Points: The paper developed a methodology for visualizing how climate change can generate various risks and how they can be interconnected We identified 91 climate risks and 253 causal relationships among them based on a literature survey and graphically presented the interconnected risks We found that changes in the climate system impact natural and socioeconomic systems, ultimately influencing human security, health, and well‐being