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本レポートは、世界平均気温の上昇を産業革命前と比べて１.5℃以内に抑えるという目標の達成に向けて、2050年までにカーボンニュートラルを実現するだけではなく、累積排出量をできる限り小さくする観点から、日本国内で早期に大幅な温室効果ガス（GHG）排出量削減を果たす可能性を検討し、その実現のためのアクションプランをまとめたものである。 2024年4月2日更新 謝辞の追記、出典の追記、誤記の修正を行いました。 企業の方向けに使いやすく再構成した「 1.5℃ロードマップ - 脱炭素でチャンスをつかむ。未来をつくる。 」もご活用ください。

This report examines the feasibility of Japan not only achieving carbon neutrality by 2050, but also making significant reductions in greenhouse gas (GHG) emissions, so as to make its cumulative emissions as small as possible, thereby contributing to the global goal of limiting the average temperature increase to below 1.5°C compared to the pre...

This is the Editorial of the first IGES-initiated Special Feature of the Sustainability Science journal. This Special Feature on Just and Sustainable Transitions in Net-Zero Asia aims to highlight how researchers, policymakers, and practitioners across Asia are applying just transition thinking to address pressing environmental challenges, climate...

This report includes an analysis of the level of awareness of the SDGs, as well as the progress made in addressing the five SDG Goals (thematic themes) that the UN Global Compact focuses on: Goals 5 (gender equality), 8 (work and human rights), 13 (climate change) and 16 (anti-corruption), and Goal 12 (sustainable consumption and production), which...

Integrating the Sustainable Development Goals (SDGs) into climate actions is essential for a healthy planet and people. Yet, national climate policies and international climate support programs often fail to explicitly recognize the interconnections between climate concerns and other priorities covered under the SDGs. This failure can leave key...

There is a growing recognition of the urgent need to change citizens’ lifestyles to realise decarbonised societies. Consumption-based accounting (carbon footprinting) is a helpful indicator for measuring the impacts of peoples’ consumption on climate change by capturing both direct and embedded carbon emissions. However, while carbon footprinting...

Global freshwater scarcity is projected to be affecting almost half of the world’s population by 2025. Desalination has become a reliable option to provide freshwater, especially with climate change and its direct impact on water resources. The desalination technology transforms some non-traditional water sources either by processing brackish water...

River meandering and anabranching have become major problems in many large rivers that carry significant amounts of sediment worldwide. The morphodynamics of these rivers are complex due to the temporal variation of flows. However, the availability of remote sensing data and geographic information systems (GISs) provides the opportunity to analyze...

Groundwater offers smallholder farmers in the lowlands of Lao PDR opportunities to diversify cropping beyond wet season paddy and thus enhance their livelihoods while reducing climate risks. This chapter focuses on evaluating existing and specifically developed groundwater irrigation options on the Vientiane Plain, and framing the findings around...

Key messages There is a need for a broader and holistic effort to address a host of environmental issues and challenges faced by the Tonle Sap Lake (TSL). In order to realize a sustainable and resilient TSL and its basin, this policy guide suggests three resilience enhancement measures: i) Ecohydrological resilience enhancement measures, ii) Land...