Poster Session 1

[5OlXCzC1-08] A three lever CMIP aligned roadmap to decarbonize and climate proof Japans healthcare sector

*kazumi Kubota¹, Kubota Anna² (1. Shimonoseki City University (Japan), 2. Keio University (Japan))

Keywords:

Decarbonization,Climate resilience,Japan’s healthcare sector,Roadmap,Coupled Model Intercomparison Project (CMIP)

[Purpose] The Japanese healthcare sector holds a critical dual mandate to safeguard public health from intensifying climate hazards and to mitigate its own environmental footprint. Healthcare activities contribute about 4 to 5 percent of greenhouse gas emissions globally. While awareness is high, there is a clear need for a concrete strategy. This paper proposes a practical roadmap to accelerate decarbonization and ensure climate resilience within Japans medical infrastructure.[Method] This framework is developed by analyzing successful models such as the UK National Health Service and results from a 2025 survey of 152 Japanese organizations by the Health and Global Policy Institute. The strategy centers on three strategic levers which are Education, Measurement, and Incentives. These elements are synchronized with data cycles from the Coupled Model Intercomparison Project to maintain high scientific standards.[Results] The survey results indicate that Japanese medical bodies recognize climate threats but lack the technical expertise to act. In response, this roadmap introduces a minimum viable measurement set that focuses on high impact areas like anesthetic gases and energy consumption. Implementing these targeted actions allows facilities to achieve verifiable emission reductions and improved resilience within 12 to 36 months.[Consideration] Connecting healthcare operations with latest climate modeling allows providers to plan effectively for extreme heat and long term facility upgrades. Integrating climate competency into professional training and procurement standards is vital for sustainable implementation with low administrative burden. [Conclusion] This sequenced roadmap provides a credible pathway for the Japanese health sector to support national climate goals. By linking education and measurement with financial incentives, the framework helps systems transition from simple intent to measurable impact.