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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...

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...

　本報告書は、令和７年度環境省「途上国における優れた脱炭素･低炭素技術の普及展開に向けた制度構築等支援委託業務」の業務報告書である。 　本業務は、二国間クレジット制度（JCM）を活用した優れた脱炭素・低炭素技術の展開及びJCM プロジェクトを契機とした横展開や普及拡大を更に強化していくため、途上国の長期戦略の策定支援、NDC 更新・実施支援や、脱炭素都市の形成に向けた取り組み支援を行うとともに、それらの国・ 都市の市場の状況を踏まえ、途上国や都市における新たな制度・規制等の構築や既存制度の改善に着手することを目的として、以下の４課題を行った。 I．各国のNDC 更新並びに各国等の長期戦略策定等を見据えたAIM を活用したシナリオ分析及び脱炭素化に向けた戦略・制度構築支援 II...

The Vietnamese Mekong Delta (VMD), a cornerstone of national food security, is increasingly affected by salinity intrusion arising from the combined influences of upstream hydropower development, climate change, and sea-level rise. Despite growing attention to this issue, the long-term hydrological mechanisms shaping these changes remain...

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...

Climate change and river flow alterations in the Mekong River have significantly exacerbated drought conditions in the Vietnamese Mekong Delta (VMD). Understanding the temporal dynamics and propagation mechanisms of drought, coupled with the compounded impacts of human activities, is crucial. This study analyzed meteorological (1992–2021) and...

The Vietnamese Mekong Delta (VMD) is undergoing increasing disruption to its sediment–water continuum due to upstream hydropower development, regional land use change, and climate variability. Suspended sediment concentration (SSC) and streamflow are key indicators of the delta’s ecological stability and agricultural productivity, yet their recent...

Global strategies for adaptation to climate change that are based on western scientific knowledge often encounter difficulties being adopted in non-western contexts in the Asia-Pacific region. In the face of climate change, locally-led adaptation (LLA) has emerged as a promising approach, emphasizing the importance of local knowledge systems in...

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...