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JICAにより2025年11月に実施されたイラン国別研修「地方自治体における３Rを含む廃棄物管理処理能力の向上」において、11月10日に「廃プラスチック問題とその国際政策動向」に関する講義・研修を実施した。参加者とは特に、プラスチック国際条約のINCでの議論およびイランの対応などについて意見交換を行った。日本語での発表を行い、ペルシャ語で逐次通訳が行われた。

Rapid urbanization in the Global South poses challenges to ecological integrity, cultural heritage, and equitable access to green infrastructure. This study evaluates the effectiveness of recent green infrastructure projects in Addis Ababa, Ethiopia, including flagship parks and upgraded road corridors, through the lens of the Urban Nature Futures...

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...

Even though the mosaic of different land-use/land-cover types has long contributed to the resilience of socio-ecological production landscapes and seascapes in Ethiopia, recent data indicate that their sustainability is under threat. This study aims to evaluate landscape resilience by adopting a set of indicators for enhancing sustainability in the...

Aq’Qala county has been categorized as a high flood-prone area in Iran, and faced many major flood events in last two decades (e.g. in 2001, 2002, 2007, 2012, 2017, and 2019). The main aim of the current study is to produce and validate flood vulnerability rate (FVR) maps of this area relying on geospatial data. Vulnerability criteria were...

Climate change and overpopulation have led to an increase in water demands worldwide. As a result, land subsidence due to groundwater extraction and water level decline is causing damage to communities in arid and semiarid regions. The agricultural plain of Samalghan in Iran has recently experienced wide areas of land subsidence, which is...

Although keystone species in the home garden agroforestry system provide multiple contributions to people, they have not been thoroughly researched, particularly in indigenous crops. Enset (Ensete ventricosum) is a domesticated home garden perennial crop in large parts of southern Ethiopia. This study explores the diverse contributions of enset in...

Soil moisture is a critical component for Earth science studies, and Synthetic Aperture Radar (SAR) data have high potential for retrieving soil moisture using backscattering models. In this study, polarimetric SAR (PALSAR: Phased Array type L-band Synthetic Aperture Radar) data and polarimetric decompositions including span, entropy/H/alpha, and...

Despite expanding interest in nature's contributions to people (NCP) studies, understanding of sacred natural sites’ contributions to human society and the restoration of fragmented landscapes remains relatively limited. This study examines the diversity and extent of NCP by church forests in a fragmented tropical landscape in southern Ethiopia. We...

“Jefoure” refers to a traditional grass-covered road with households settled on both sides in the Gurage socio-ecological production landscape in Ethiopia. We assess Nature’s Contributions to People (NCP) on Jefoure roads for sustainable management. Data were collected using survey tools and orthophoto images, and they were systematically analyzed...