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本レポートは、世界平均気温の上昇を産業革命前と比べて１.5℃以内に抑えるという目標の達成に向けて、2050年までにカーボンニュートラルを実現するだけではなく、累積排出量をできる限り小さくする観点から、日本国内で早期に大幅な温室効果ガス（GHG）排出量削減を果たす可能性を検討し、その実現のためのアクションプランをまとめたものである。 2024年4月2日更新 謝辞の追記、出典の追記、誤記の修正を行いました。 企業の方向けに使いやすく再構成した「 1.5℃ロードマップ - 脱炭素でチャンスをつかむ。未来をつくる。 」もご活用ください。

This report examines the feasibility of Japan not only achieving carbon neutrality by 2050, but also making significant reductions in greenhouse gas (GHG) emissions, so as to make its cumulative emissions as small as possible, thereby contributing to the global goal of limiting the average temperature increase to below 1.5°C compared to the pre...

There is limited knowledge on the potential impacts of electric vehicle (EV) deployment in developing countries to date. India is a rapidly industrializing country with a national policy to promote EVs, but does not have the waste management infrastructure to process battery waste. Through a model analysis for India, we projected that the sale of...

This paper examines the effects of financial incentives, particularly electricity prices, on residential solar photovoltaic system installations. We shed light on the importance of a factor that has been largely overlooked in the literature on the adoption behavior of low-carbon building technologies: the distinction between retrofit and new-build...

Carbon pricing instruments (CPIs) are being developed at different rates and in different forms in ASEAN Member States. The CPI survey focused on six AMS—Indonesia, Malaysia, the Philippines, Singapore, Thailand and Viet Nam (hereafter referred as AMS-6). Taking into account the availability of facility-level MRV guidelines as well as the sectoral...

Japanese companies have pioneered the development of a large number of low-carbon technologies (LCTs). As a rapidly expanding economy with burgeoning energy requirements, India offers a significant potential market for Japanese LCTs. The industry sector in India accounts for a significant share of commercial energy use and hence carbon dioxide (CO2...

Executive summary Under Article 6 paragraph 2 (Article 6.2) of the Paris Agreement (PA), Parties may take cooperative approaches in the implementation and achievement of nationally determined contributions (NDCs). The draft guidance of Article 6.2 stipulates, inter alia, the reporting requirements for the participating Parties to engage in a...

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...

While the initial pieces of evidence indicate that COVID-19 induced economic slowdown and lockdown present short-term benefits to air quality and the environment, these also pose a double-edged challenge in the long-term. On one side, the slowing down of the economy can have an adverse impact on countries’ ongoing efforts towards climate mitigation...

China announced the launch of a national emissions trading scheme (ETS) in December 2017 for the regulation of its carbon dioxides emissions. In emissions trading, China is likely to encounter issues different from those encountered by the European Union and other developed countries. This study first identifies the contextual factors that...