Accounting for non-equivalence of carbon emissions and removals in meeting national net zero emissions targets in the United Kingdom
英国の国家ネットゼロ排出目標達成における炭素排出と除去の非等価性の会計処理 (AI 翻訳)
Oliver Broad, Verena Hofbauer, Isabela Butnar, Ingrid Sundvor, Stephanie Loo
🤖 gxceed AI 要約
日本語
本論文は、地質学的ネットゼロ（GNZ）の概念を導入し、英国を事例に、排出と除去の非等価性を考慮したネットゼロ目標の達成経路を分析。厳格・漸進・累積の政策シナリオ下で、GNZは2040年までに達成可能で、2030-2050年の累積排出を0.9-2.34 GtCO2e削減できると示す。技術や供給網の混乱に脆弱だが、地球システムの排出会計原則に沿った政策の重要性を強調。
English
This paper introduces the concept of geological net zero (GNZ), which requires fossil CO2 emissions to be balanced by geological-timescale storage. Using the UK as a case study, it analyzes pathways under strict, progressive, and cumulative policy formulations, finding GNZ could be reached by 2040, saving 0.9-2.34 GtCO2e between 2030-2050. The outcomes are challenging and vulnerable to supply-chain disruptions, but align with earth system accounting principles, meriting policy scrutiny.
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
日本では、2050年カーボンニュートラル目標の達成に向けて、排出と除去の非等価性を考慮した会計手法の検討が重要。本論文のGNZ概念は、日本の長期戦略やカーボンクレジット制度設計に示唆を与える。
In the global GX context
Globally, this paper contributes to the debate on how to account for carbon dioxide removal in national net zero targets, aligning with ISSB and other disclosure frameworks that require transparent accounting of removals. It provides a replicable methodology for other countries to assess their own pathways.
👥 読者別の含意
🔬研究者:Provides a novel framework for accounting non-equivalence of emissions and removals, with quantitative insights for UK pathways.
🏢実務担当者:Highlights the need for companies to align with geological net zero principles in their climate strategies and disclosure.
🏛政策担当者:Offers policy-relevant analysis on how to design net zero targets that account for the permanence of removals.
📄 Abstract（原文）
Abstract Carbon dioxide removal is expected to play a crucial role in counterbalancing residual emissions and limiting temperature rise in line with Paris Agreement targets. Durable temperature stabilisation requires fossil CO2 emissions to be balanced by geological timescale storage – a condition defined as geological net zero (GNZ). Replicable for other countries, our analysis uses the UK as a case study, assessing how different GNZ implementations reshapes energy system pathways and mitigation strategies under strict, progressive, and cumulative policy formulations. We find that GNZ could be reached as early as 2040, delivering lower emission pathways than current carbon budgets prescribe, with savings of 0.9-2.34 GtCO2e between 2030-2050. These outcomes are challenging, vulnerable to disruptions in technology and feedstock supply-chains, and subject to the pace of emissions’ reductions and removals uptake. Yet they reflect earth system emissions accounting principles required to meet stated climate targets, and as such merit increased policy scrutiny.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.21203/rs.3.rs-10598478/v1first seen 2026-08-12 05:48:51
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