Environmental and material implications of global climate mitigation pathways
地球規模の気候緩和経路が環境と資源に与える影響 (AI 翻訳)
Menacho AJH, Bantje D, Bauer C, Bauer N, Daioglou V, Krey V, Luderer G, Maczek F, McKenna R, Sacchi R
🤖 gxceed AI 要約
日本語
パリ協定達成にはエネルギーシステムの急速な変革が必要だが、その環境影響と資源要件は十分に評価されていない。本研究は3つの統合評価モデルによる24の気候緩和経路をライフサイクル視点で分析し、深い脱炭素化が健康と生態系に大きな共便益をもたらす一方、土地・水・鉱物資源への圧力を系統的に低減しないことを示した。電化に不可欠な金属では、気候対策の野心が累積採取量よりも採取時期の分布を変化させる。
English
This study analyzes 24 climate mitigation pathways from three Integrated Assessment Models using a life-cycle perspective. Deep decarbonization provides substantial co-benefits for human health and ecosystem quality but does not systematically reduce pressures on land, water, or mineral resource extraction. For metals central to electrification, climate ambition primarily reshapes the timing rather than cumulative volumes of extraction.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のGX政策において、脱炭素化がもたらす資源制約（レアメタル・水・土地）は重要課題。本論文は、温暖化対策の副作用を定量的に示し、SSBJや有報での資源リスク開示の基礎資料となる。
In the global GX context
This paper provides a life-cycle assessment of global decarbonization pathways, highlighting trade-offs between climate goals and resource pressures. It informs global discussions on sustainable transition, relevant to ISSB and CSRD requirements for double materiality and resource dependency.
👥 読者別の含意
🔬研究者:Provides a systematic comparison of environmental and resource impacts of different mitigation pathways, useful for refining IAMs and life-cycle assessment methods.
🏢実務担当者:Helps corporate sustainability teams understand the broader environmental footprint of energy transition scenarios beyond carbon, informing materiality assessments.
🏛政策担当者:Highlights that deep decarbonization does not automatically reduce resource pressures, underscoring the need for complementary policies on recycling and resource efficiency.
📄 Abstract（原文）
<title>Abstract</title> <p>Reaching the goals of the Paris Agreement requires a rapid transformation of global energy systems. Yet energy supply and use exert multiple pressures on ecosystems, human health, and natural resources, raising questions about the broader environmental consequences of alternative decarbonization pathways and the resources they require. Here, we analyse 24 climate mitigation pathways from three Integrated Assessment Models using a life-cycle perspective. This enables a system-wide comparison of environmental impacts and resource requirements of global final energy provision from 2020 to 2100. We find that deep decarbonization delivers substantial co-benefits for human health and ecosystem quality, but does not systematically reduce pressures on land, water, or mineral resource extraction. For metals central to electrification, climate change mitigation ambition primarily reshapes the timing of extraction rather than cumulative volumes. Pathways achieving similar climate targets can impose markedly different environmental and resource pressures, shaping the feasibility and desirability of alternative transitions.</p>
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.21203/rs.3.rs-9527853/v1first seen 2026-05-14 21:18:06
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。