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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。

As more countries witness depopulation, the expansion of High-Speed Rail (HSR) to reach shrinking cities in peripheral regions is renewing the debate on the effects of this infrastructure. This is the case in Japan, a country that continues to extend its highly developed HSR network hoping to curb regional decline. This paper investigates whether...

While shrinkage has been a debated topic in regional studies in the last decade, the shock brought by Covid-19 on the global economy adds further concerns for cities and regions already suffering from depopulation. As a result, a review of existing planning approaches and policies is necessary to inform change and support the future of cities and...

This is the final report of the city-to-city collaboration between EU cities (including one from the UK) and Japanese cities under the International Urban and Regional Cooperation (IURC) Asia and Australasia. During 2021-2023, thirteen EU cities (including one UK city) from ten countries and ten Japanese cities participated in the project and...

Low birth rates, restrictive immigration policies, and decades of economic stagnation are marking Japan’s transition to a post-growth society. All levels of government have hurried to address the new challenges ahead. In this desperate run for survival, the development of new high-speed railway lines in peripheral areas has been met with high...

By reflecting on the case of Imabetsu, this paper explores alternative mechanisms to cope with shrinkage while striving for transitioning to more sustainable development pathways. It argues that rather than fighting against decline, the town should embrace its smaller size while looking within to find alternative ways to sustain the local community...

This paper explores how high-speed railway (HSR) development can aid the survival of peripheral depopulating regions by increasing their connectivity. It focuses on the recently opened ‘Okutsugaru-Imabetsu Station’ of the Hokkaido Shinkansen in Imabetsu town, the smallest locality in Japan to enjoy a Shinkansen station. Based on this case study...

２０１８年４月に閣議決定された第５次環境基本計画において、「地域循環共生圏」の概念が提唱されました。「地域循環共生圏」とは、各地域が美しい自然景観等の地域資源を最大限活用しながら自立・分散型の社会を形成しつつ、それぞれの地域の特性に応じて、他地域と資源を補完し支え合うことにより、地域の活力が最大限に発揮されることを目指す考え方です。本事例集では、他の国や国際社会に参考となるような地域循環共生圏に関する日本の16の先進的取組を紹介することで、世界の各地で地域循環共生圏を創造する取組を後押しすることを目的としています。 本書のダウンロードはこちら（PDF） http://chiikijunkan.env.go.jp/pdf/jirei/jirei1_all.pdf

The Japanese government has proposed a vision called "Circulating and Ecological Economy" in the Fifth Basic Environment Plan approved by the Cabinet in April 2018. The Circulating and Ecological Economy is an idea that aims to develop self-reliant and decentralized societies by leveraging regional resources, including natural environments and...