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海洋プラスチック汚染の中でも漁業活動（漁業および養殖業を含む）に由来するものは放棄・遺棄・投棄された漁具（Abandoned, Lost, or Discarded Fishing Gear: ALDFG、またはゴーストギア）と呼ばれる。海洋に流出して日本の近海および沿岸域を汚染しているALDFGは、日本国内から発生したものに加え、多くは近隣諸国を含む他国から漂着したものである。このことから、ALDFG対策は日本のみでなくアジア諸国全体で取り組むことが重要であると考えられる。 そこで、本稿では、東アジア地域の中でも特に韓国と台湾を対象として実施した現地調査の結果をとりまとめ、日本との比較を通じて今後の日本の対策強化に向けた提言を抽出した。その結果、韓国および台湾においては...

モントリオール議定書キガリ改定への批准後のタイにおけるHFC削減への取り組みに関する調査・分析レポート。内容は文献調査及び2025年11月にタイ政府（工業省工場局、天然自然環境省汚染管理局）へのヒアリング調査結果に基づいている。 なお本調査は、環境研究総合推進費S-20-3(4)(JPMEERF21S12030)における研究成果の一部である。

This report provides a baseline assessment of Cambodia’s informal waste sector, with a focus on Phnom Penh and Battambang. Informal waste workers, including street pickers, door-to-door collectors, pickers at landfills and junkshop operators, play a critical yet undervalued role in the country’s waste management system. They are responsible for a...

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...

For the last 30 years, a considerable amount of international capacity building support has been provided, by means of technical assistance projects, for developing countries to regularly report national information on climate action and support. However, understanding the roles of those projects is limited, especially their impacts in the medium...

The outcome of the first Global Stocktake (GST1), concluded at COP28, is expected to firmly inform countries’ next nationally determined contributions (NDCs), due in early 2025, so as to ensure that global efforts are on track to achieve the goals of the Paris Agreement. Taking Malaysia as a case study country, the objective of this study is to...

Focusing on four major ASEAN member states, including Indonesia, Viet Nam, Thailand and the Philippines, this paper reviews the current status, and identifies the gaps and prospects for achieving a high penetration of renewables for energy transition in ASEAN. These four countries have been leading renewable policies in this region and have...

Japan has adopted several policies that signal its intent to rely on hydrogen to achieve net-zero climate goals. However, many of those same policies are unclear about its support for a transition to green hydrogen. Relying on gray and blue hydrogen without a transition to green hydrogen will harm the climate. It will also result in several other...

The objective of this paper is to identify relevant indicators and highlight the current availability of data to support collection of indicators for measuring and evaluating transparency capacity under the GST. It is fair to question, why after all these years of international capacity-building do many countries, particularly developing countries...

本分析では、100%という最大限の再生可能エネルギー（以下、再エネ）比率を想定した状況下において、送電線や電源などの電力系統内に揚水式水力、貯水池式一般水力発電、地熱発電、バイオマス発電、家庭用ヒートポンプ式給湯器、系統に接続される電気自動車（EV）の蓄電池、水素製造装置、既存ガス火力発電を改修した水素専焼火力といった電力需給調整に必要な柔軟性 (Flexibility) を供給する能力（以下、柔軟性供給力）がどのように利用されるかを明らかにする。 そのために、系統電力需要量に対応する電源構成において、国内再エネ由来の電源が実質的に100% となるシナリオを含む6つのシナリオ（RE60海外水素、RE100、RE100α、RE90α、RE100β、RE90β）を構築した...