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Typhoon impacts in the Philippines exhibit strong neighbourhood-scale heterogeneity driven by interactions among hazard intensity, exposure, and vulnerability, yet most operational assessments remain hazard-centric. This study presents a grid-based machine-learning framework for neighbourhood-scale typhoon risk mapping integrating geophysical...

東南アジア地域における急速な都市化と消費拡大に伴い、プラスチック廃棄物の発生量が急増し、プラスチック汚染が特に深刻な課題となっている。ASEAN諸国では、使い捨てプラスチックの禁止、拡大生産者責任（EPR）制度、普及啓発キャンペーンなど、さまざまな対策が進められている。しかし、これらの対策だけでは、根強く定着した消費行動を変えるのは難しい。 利用制限や普及啓発だけで十分な効果が得られないような課題に対し、行動科学は有効な補完的アプローチとなる。Behaviour-Centred （行動に関する理解に基づく、行動に焦点を当てた）アプローチを取り入れることで、単なる情報提供や経済的インセンティブに頼るのではなく、「意図と行動のギャップ」を埋め、持続可能な行動変容を促すことができる。...

Plastic pollution is a growing challenge in Southeast Asia, where rapid urbanisation and rising consumption are driving sharp increases in plastic waste. While traditional regulations such as plastic bans and information campaigns are important, they often fail to shift deeply ingrained consumption and waste management habits on their own. This new...

This paper outlines a comprehensive strategy for Lao PDR to eliminate open waste burning (OWB), a prevalent disposal method caused by limited waste collection services. It emphasizes that OWB is a major source of toxic air pollutants like PM2.5 and black carbon, which severely threaten public health and exacerbate climate change. Rather than...

Decarbonizing road transport requires a socio-technological transition that integrates systemic changes in transport infrastructure, technological innovation, and broader societal transformation. Non-state actors—particularly sub-national governments and cities such as Jakarta Metropolitan City, West Java Province, and the City of Semarang—play a...

From "Islands of Excellence" to a "Sea of Change": How ASEAN's Secondary Cities are Localising the SDGs in the region As the ASEAN region rapidly urbanises, the focus often falls on its mega-cities. However, a quiet transformation is underway in the region’s secondary cities -- the agile urban centres that are proving to be fertile ground for...

Air pollution is Southeast Asia’s leading environmental health risk and a key driver of climate change through short-lived climate pollutants (SLCPs) such as black carbon and methane. The Southeast Asia Climate & Clean Air Initiative (SEACAI), co-financed by Germany and Switzerland, demonstrates how coordinated donor action can deliver tangible...

While food security is conventionally defined by four pillars—availability, access, utilisation, and stability—this apolitical framing overlooks underlying economic and political processes shaping food insecurity and constraining the agency of food producers. In doing so, it also overlooks the structural threats to human security. Considering the...

The Convention on Biological Diversity (CBD) emphasizes the need for innovative approaches to foster harmonious coexistence with nature, particularly in managing critical resources such as watersheds. This study applies the Nature Futures Framework (NFF) to integrate diverse value perspectives on nature into sustainable watershed management...

Interest in co-benefits—the multiple benefits from mitigating climate change while addressing other sustainability challenges—has grown as policymakers seek to lower the costs of decarbonization. Much of this interest stems from data-driven models that quantify how much improved air quality, better health, and other co-benefits can offset those...