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The National Awareness and Training Workshop on Extended Producer Responsibility (EPR), held in Maseru, Lesotho on 17 June 2026, brought together government agencies, municipalities, producers, academia, civil society, development partners, and informal-sector representatives to explore pathways for developing an inclusive and nationally...

The Capacity Building and Technical Training Programme on Waste Characterisation Survey Methodology, held in Lesotho on 15–16 June 2026, aimed to strengthen national capacity for evidence-based waste governance and planning. Organized by UNEP-IETC, IGES-CCET, UNDP, the Ministry of Environment and Forestry, and the National University of Lesotho...

Microplastic pollution in tropical urban rivers has become an increasing environmental concern due to rapid urbanization, inadequate waste management, and hydrological transport processes. This study investigated the occurrence, characteristics, and spatiotemporal distribution of microplastics in the Can Tho River, Vietnam, along an urban– peri...

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。...

Salinity intrusion has become a critical threat to agricultural stability and water resource management in the Vietnamese Mekong Delta (VMD), particularly in coastal regions. This study evaluates the efficacy of the Long Short-Term Memory (LSTM) neural network, a sophisticated deep learning (DL) architecture, for predicting salinity concentrations...

Single-use plastic waste poses significant environmental challenges, particularly through microplastic pollution in aquatic ecosystems. In this study, a bio-carrier was fabricated from recycled single-use plastic waste, and its performance was evaluated in a laboratory-scale moving bed biofilm reactor combined with membrane filtration (MBBR-MBR)...

Using behavioral insights to increase reusable water bottle use Nopa Move’s Smart Bottle Network, with support from the Economic Research Institute for ASEAN and East Asia (ERIA), Institute for Global Environmental Strategies (IGES), and Rare, addressed single-use plastic waste in Ho Chi Minh City’s commuter coffee culture, where disposables...

Drought is a recurrent hazard in the Vietnamese Mekong Delta (VMD), with major implications for agriculture, water resources, and rural livelihoods. This study assesses drought variability in Kien Giang Province, Vietnam, from 1992 to 2024 using two multiscale indicators: the Multivariate Standardized Precipitation Index (MSPI) and the Multivariate...

Suspended sediment concentration (SSC) and sediment flux (SF) are critical indicators of sediment delivery in the Lower Mekong and underpin deltaic geomorphic stability and ecosystem services. With recent evidence of declining sediment supply caused by upstream regulation and intensive in-channel extraction, there is a pressing need for...

Non-economic loss and damage (NELD) associated with climate change is increasingly recognized as a critical yet under-assessed dimension of climate risk, particularly in vulnerable regions such as Africa. This study presents an analytical framework for synthesizing evidence from a systematic literature review conducted under the ASCEND initiative...