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2025 年 1 月の第 2 次トランプ政権発足以来、米大統領府は、'\リ協定脱退や石炭産業活性化に関する大統領令を相次いで発出し、米環境保護庁(EPA)は、温室効果ガスの影響に関する危険性認定を含む約 30 項目の環境規制の見直しを公表するなど、トランプ政権は、バイデン政権が進めてきた脱炭素政策からの全面的な見直しを目指しており、米国の環境、気候変動政策は大きく転換している。 また、トランプ政権は国連組織等の国際機関への拠出の一時停止や見直しを行うとともに、国務省、EPA、USAID をはじめとする連邦政府組織の見直し、大規模な人員削減を実施。USAID の機能停止により、世界各地での支援が停止するなど、世界中に影響が広がっている。 本業務では、こうした米国における環境...

Many cities have integrated health co-benefits into their climate plans to address cost concerns and build multi-stakeholder support for resilient, net-zero transitions. While some studies have demonstrated that cities vary in how much they link health and climate, few have examined why this is the case. This study fills this gap by using 16...

Decarbonizing transport systems is critical to a net-zero future. Explicitly factoring health co-benefits into urban climate/ transport plans could persuade decision-makers to adopt and implement the policies needed for such a future. Many studies have estimated the health benefits of transport policies with these ends in mind. However, how...

Brazil and Japan are key partners that share common visions, including multilateral international cooperation, the Bioeconomy and Satoyama Initiative, the decarbonization of internal combustion engine vehicles, etc. In the context of a rapidly changing international situation, it is crucial for both countries' sustainable development, including...

Main Messages This briefing note identifies factors which may reduce some of the negative impacts of the Trump Administration’s expected efforts to undermine climate policies as well as a few potential areas for positive bipartisan climate cooperation. Policies based on laws, such as the climate initiatives in the Inflation Reduction Act, will be...

IGES Joint Crediting Mechanism (JCM) Database provides detailed information on the JCM methodologies, projects, and JCM feasibility studies to be utilized for research and development of JCM project. The JCM is being implemented under bilateral cooperation between Japan and 29 partner countries: Mongolia, Bangladesh, Ethiopia, Kenya, Maldives, Viet...

The year 2023 marked a concerning milestone in climate history with the global average temperature being 1.45 ± 0.12°C above the pre-industrial average. The Global Stocktake at COP28 showed that the projected temperature rise is expected to be between 2.1 - 2.8°C even if nationally determined contributions (NDCs) of all countries are fully achieved...

Holistic landscape restoration offers a solution to multiple interconnected challenges that face our planet. This paper introduces an innovative approach to financing nature alongside local socio-economic and wellbeing needs. Specifically, it describes a practical financing framework for HLR that can aid implementation of commitments related to...

This is a series of international seminars at the UNAM in Mexico City. The objective is to identify the foundations of the cities of the future and to analyse the concepts, problems and examples of this theme in the world. The author presented tha case studies of Tokyo, Bhutan, and Mexico City as a scenario analysis of the future of cities.

This paper conducts a comparative analysis of green industrial policy strategies recently advanced by the European Union (EU) and the United States (U.S.), and extends insights to the evolving policy landscape in Japan. Its analysis underscores how the European strategy is characterized by a systematic approach that balances emissions constraints...