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　 2020 年 10 月、当時の菅総理が「 2050 年カーボンニュートラル、脱炭素社会の実現」を宣言してから今日に至るまで（ 2023 年 3 月 31 日時点）、東京都・京都市・横浜市を始めとする 934 自治体（ 46 都道府県、 531 市、 21 特別区、 290 町、 46 村）が「 2050 年までに二酸化炭素排出実質ゼロ」を表明しており、係る自治体の総人口は、約 1 億 2,577 万人にのぼる。今後、自治体による地域特性に配慮した再エネ戦略づくりの更なる活性化が見込まれ、再エネポテンシャルの正確な把握が課題となる。本稿は神奈川県三浦郡葉山町を対象に、建築物外周線データ分析に基づき、当該行政区域における屋上設置型太陽光発電設備の導入ポテンシャルについて試算した。試算では...

A waste bank is a unique community-based waste management system that promotes source separation of waste and recycling. This study conducted a total population sampling targeting all identified waste bank units in Medan City (N = 100) between September 2017 and February 2018. Descriptive statistics were applied to address 16 research questions and...

The IPCC Sixth Assessment Report highlighted the critical connections between climate actions and sustainable development, including both synergies and trade-offs. Managing the trade-offs through policy design is strongly recommended and the Sustainable Development Goals (SDGs) are proposed as a basis for evaluating climate actions in the context...

Natural resource management in developing countries is often placed in the context of strengthening climate change resilience. However, the resilience concept is highly abstract. This study will analyze how the resilience concept is reflected in policies, measures, and implementation in Ethiopia and Kenya, two countries with arid and semi-arid...

In 2022, UNEP conducted a regional review of the Voluntary National Reviews (VNR) in Asia-Pacific covering 36 countries and 50 VNRs from an environmental perspective. For indicators, we developed a framework to review the environment-related indicators and data that were used in the VNRs. We found that t he overall coverage of the environment...

The UN 2030 Agenda charts out 17 interlinked Sustainable Development Goals that require a systems approach to their implementation. However, such a systems approach is new and challenging due to the broad coverage of social, economic and environmental dimensions and complex relations among 169 targets. There is a big knowledge gap about how the...

Land availability has become a major issue for the maximum introduction of renewable energy, and high expectations are growing for the effective use of abandoned farm land. On the other hand, many of the abandoned farm lands are located in mountains and valleys, and are dispersed on a small scale. From the viewpoint of the feasibility of solar...

1970年6月に新都市計画法の区域区分制度により指定された市街化調整区域は、開発を留保しつつ自然景観の保全と農業振興を目的とするため、農家住宅以外に原則認められない。しかし、横浜市ではこのような目的に加え、将来の大規模開発のための留保などの積極的な意図を持たせるとともに、スプロールが進行中の地域については、区画整理等計画的に市街化をはかる機会まで市街化調整区域に指定した。本研究では、横浜市の当初線引きのにかかる当時の内部資料をもとに、区域区分制度における都市計画意図を概観する。

Tree growing in the tropics has been attracting international attention in recent years as a climate change mitigation measure, and potential sites for afforestation have been identified. However, past experience has shown that afforestation projects in the tropics are accompanied by issues such as land rights and medium- to long-term management...

A Voluntary Local Review (VLR) is an instrument to review and follow-up progress towards achieving the Sustainable Development Goals (SDGs), thus accelerating their localisation. Since 2018, a growing number of local governments worldwide are turning to the VLR process to articulate their sustainable development policies, highlighting the growing...