Publications

（Japanese title: GOSAT・都市レベル温室効果ガス排出量のトラッキング） This submission provides our input for the first Global Stocktake under the Paris Agreement. Our input focuses on tracking city-level emission changes by the JAXA/GOSAT GHG product. Summary of the submission: Cities are major sources of GHG emissions, consuming about 75% of the world ’s energy and...

(Japanese title: 日本の一般旅客機を活用したリアルタイムでの温室効果ガス排出量の観測) This submission provides our input for the first Global Stocktake under the Paris Agreement. Our input focuses on real-time anthropogenic emission observations from Japanese passenger aircrafts in support of the monitoring of the climate mitigation progress. Summary of the submission: Real-time...

（Japanese title: 熱帯林違法伐採の検知（JJ-FAST）） This submission provides our input for the first Global Stocktake under the Paris Agreement. Our input focuses on a satellite-based deforestation monitoring system for tropical forests, “JICA-JAXA Forest Early Warning System in the Tropics (JJ-FAST)”. Summary of the submission: A satellite-based deforestation...

（Japanese title: 世界のマングローブ林面積・変化（GMW）） This submission provides our input for the first Global Stocktake under the Paris Agreement. Our input focuses on a satellite-based map of global mangrove extent and changes: Global Mangrove Watch (GMW). Summary of the submission: Nature-based Solutions (NbS), including coastal and marine NbS, such as...

（Japanese title: GOSAT・10年スケールでの世界の温室効果ガス濃度の観測） This submission provides our input to the first Global Stocktake under the Paris Agreement. Our input focuses on the trends of the concentration of GHGs in the atmosphere observed by the Greenhouse gas Observing SATellite (GOSAT). Summary of the submission: A decadal global JAXA/GOSAT GHG product...

A national GHG inventory is an important input for the Global Stocktake (GST), which began from COP26, aiming to assess the collective progress towards achieving the purpose of the Paris Agreement and its long-term goals. All Parties are required to submit a greenhouse gas (GHG) inventory as part of the Biennial Transparency Report (BTR) under the...

In recent years, marine plastic litter has been a critical policy issue, and action in an internationally harmonised manner is necessary to tackle this situation. Based on the G20 Implementation Framework for Actions on Marine Plastic Litter, voluntary country reporting has continued since 2019. Three reports with rich country and organisational...

This report is for FY2021 contract work with the Ministry of Environment, Japan as the Secretariat of the Asian Co-benefits Partnership (ACP) for the international partnership for promotion of co-benefits approach.

This study is based on the author’s previous research carried out in Bangkok before the COVID outbreak and after the COVID outbreak, and in Hanoi for both the FW issue and single-use plastic issue to provide a comparative analysis of challenges and opportunities for household food and plastic waste reduction.

Protected places such as nature reserves (NRs) are used to maintain ecological balance, biodiversity, and support surrounding ecosystems. However, the development and operation of infrastructure such as dikes and sluice gates in NRs, as seen in the Vietnamese Mekong Delta (VMD), often adversely affects the hydrological regime and water quality at...