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Fact Sheet
In Japan, over 460 municipalities, so-called “Zero Carbon Cities” along with the national government have committed to reduce carbon dioxide emissions to net zero by 2050. It aims to create ”domino effect”, in which the best performing Zero Carbon Cities knock down other municipalities to turn the whole country to be carbon neutral. Goto City, a...
Discussion Paper

For cities to meet the challenge of reaching carbon neutral by 2050, one option is to promote a renovation wave for buildings. A literature review of the initiatives, standards and regulations for energy savings and the renewable energy deployment in buildings in the EU, US and Asia shows the complexity of the effort, and the need to integrate...

Peer-reviewed Article
In Global Environmental Research

The focus of SCP policy has shifted from management of environmental pollution to wider socio-technical change including infrastructure, lifestyles and business models that are sustainable over decades. This paper first examines the expansion of the SCP policy domain through changes in focus of the following two aspects; product lifecycle policy...

Translation of non-IGES Material
International Resource Panel

国際資源パネル(IRP)「Policy Options to Eliminate Additional Marine Plastic Litter by 2050 under the G20 Osaka Blue Ocean Vision」の日本語翻訳版(暫定非公式訳)。本シンクピース(解説文書)は、G20からの委託により、大阪ブルー・オーシャン・ビジョンを実現するために可能な政策オプションの定性的検討を行ったものである。大阪ブルー・オーシャン・ビジョンは、G20諸国に対し、「包括的なライフサイクルアプローチを通じて、2050年までに海洋プラスチックごみによる追加的な汚染をゼロにする」ことを自主的にコミットさせ...

Discussion Paper

Water pollution caused by microplastics generated from land-based sources (e.g. as tire-wear particles, broken road markings, synthetic textile microfibre from washing, microbeads from personal care products, discharged domestic wastewater from households, and others) is attracting attention in many countries and regions around the world as an...

Issue Brief

This IGES Issue Brief is an update of policy developments related to sustainable finance in Japan between June 2021 and September 2021.


Notably for this period, the Expert Panel on Sustainable Finance under the Financial Services Agency (FSA) issued ‘The Report by the Expert Panel on Sustainable Finance’ in mid-June. Building on the...

Fact Sheet
Side Event at the COP26 Japan Pavilion: Mutual Learning Program for Enhanced Transparency: capacity building for reporting under Article 6.2 and 13

Many countries have been making efforts to improve their capacities and prepare for the transition to the enhanced transparency framework (ETF) under the Paris Agreement. To promote these efforts, the Institute for Global Environmental Strategies (IGES) and the Ministry of the Environment, Japan (MOEJ) have been conducting the Mutual Learning...




 「なぜ、海外の企業・投資家と、 日本企業や投資家との間に、取り組みレベルの大きなギャップがあるのか」

 「なぜ、一部の日本企業は、 脱炭素化に逆行する投資や意思決定を行ってしまうのか







Peer-reviewed Article
In Sustainability

Current commitments in nationally determined contributions (NDCs) are insufficient to remain within the 2-degree climate change limit agreed to in the Paris Agreement. The Intergovernmental Panel on Climate Change (IPCC) states that lifestyle changes are now necessary to stay within the limit. We reviewed a range of NDCs and national climate change...

Discussion Paper

The objective of this paper is to explain elements that are related to credit credibility and high quality carbon credits to buyers (private companies) who are considering the use of offset credits. These elements could serve as a general guidance and should be considered when purchasing offset credits from voluntary carbon markets (VCMs). In...