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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...

Bhutan faces mounting pressure on its municipal solid waste (MSW) management systems. Its capital city, Thimphu, generates approximately 50 tonnes of MSW per day, of which roughly 30 tonnes per day is organic (wet) waste that is currently deposited at the Memelakha landfill — an ageing open-dumpsite already well beyond its intended lifespan. At the...

Addressing material use, waste and pollution, and advancing circular economy transitions in Asia and the Pacific are central to achieving sustainable development outcomes that combine economic prosperity, environmental integrity and human well-being. The region’s development trajectory over recent decades has delivered substantial gains in income...

Tourism is a key driver of economic growth in Thailand, but it also generates significant environmental and socio-economic pressures, particularly in coastal destinations such as Krabi. Increasing plastic pollution, resource stress, and socio-economic inequalities highlight the limitations of conventional tourism models and the need for more...

This study provides an indicative comparative assessment of the factors underlying these challenges by examining policy content, regulatory enforcement, and institutional capacity related to OWB across ten selected Asian countries: Cambodia, China, India, Iraq, Jordan, Laos, the Maldives, Nepal, Pakistan, and Thailand. The researchers employed a...

Methane is a potent, short-lived climate pollutant responsible for nearly 0.5°C of global temperature rise. Though it remains in the atmosphere for about 12 years, its climate impact is 86 times stronger than carbon dioxide over 20 years, making methane mitigation one of the most effective strategies for tackling climate change. The waste sector...

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。...

Using behavioral science to reduce plastic waste on the UP Diliman campus The University of Philippines Diliman (UP Diliman) initiative, led by UP Diliman with support from the Economic Research Institute for ASEAN and East Asia (ERIA), Institute for Global Environmental Strategies (IGES), and Rare, tackled plastic waste generated by a dense campus...

Changing the local reuse economy with behavioral science The Rent Your Cup initiative in Lao PDR, led by Econox with support from Economic Research Institute for ASEAN and East Asia (ERIA), Institute for Global Environmental Strategies (IGES), and Rare, addressed the growing problem of single-use plastic waste driven by expanding café culture and...

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...