Assessing the carbon market potential of global seagrass recovery
世界の海草回復の炭素市場可能性評価 (AI 翻訳)
Ralph Chami, Thomas Cosimano, Connel Fullenkamp, Dinah Nieburg, Carlos M. Duarte
🤖 gxceed AI 要約
日本語
海草はブルーカーボン生態系の中で最も回復の可能性が高く、最大100万km²の回復により17.8 Pg CO2-eqの炭素除去が見込まれる。炭素クレジットの総価値は1.13～2.27兆米ドルと推定されるが、より保守的なシナリオでは0.28～0.57兆米ドルとなる。部分的な回復でも気候変動緩和への貢献は大きい。
English
Seagrass offers the largest restoration potential among blue carbon habitats. Modeling shows that restoring seagrass to near its maximum global extent (about 1 million km²) could remove up to 17.8 Pg CO2-eq, with carbon credit values of USD 1.13–2.27 trillion under optimistic assumptions. More conservative estimates still yield substantial climate mitigation value.
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
日本はブルーカーボンに関心が高く、環境省が認証制度を開始。本論文は海草回復の炭素クレジット価値を定量化しており、日本のブルーカーボン市場設計や企業のカーボンオフセット戦略に示唆を与える。
In the global GX context
This paper provides a rigorous valuation of seagrass restoration as a carbon removal strategy, relevant to global carbon markets (e.g., voluntary carbon markets, Article 6). It informs the growing interest in nature-based solutions within corporate climate commitments and national NDCs.
👥 読者別の含意
🔬研究者:Provides a modeling framework for blue carbon potential and valuation that can be applied to other ecosystems.
🏢実務担当者:Offers quantitative benchmarks for carbon credit supply from seagrass restoration projects.
🏛政策担当者:Highlights the significant climate mitigation potential of seagrass, supporting inclusion in national carbon accounting and market mechanisms.
📄 Abstract（原文）
Seagrass offers the largest scope for restoration among blue carbon habitats, due to their greater potential extent along with efficient space occupation through their clonal growth. Here we model the upper limit to the value of carbon removal if seagrass were to be restored to approach their maximum global extent, estimated at about one million km 2 to yield up to 17.8 CO 2-eq . This corresponds to a total value of the associated carbon credits of USD 1.13–2.27 trillion, depending on the length of exponential clonal growth. More conservative scenarios, considering lower, updated, carbon sequestration rates, bring down the upper limit to the long-term carbon sequestered by rebuilding seagrass meadows to 20% down to 3.29 Pg CO 2-eq , valued at USD 0.28–0.57 trillion. When this lower carbon sequestration estimate is referred to seagrass recovery to a 1970 baseline, rather than the maximum possible extent, the corresponding carbon removal is further reduced to 1.64 Pg CO 2-eq , valued at USD 0.13–0.27 trillion. These results show that the value of the climate change mitigation potential of seagrass restoration will be sizeable even if only partial recovery and/or a lower average areal carbon removal could be achieved.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s44183-026-00218-wfirst seen 2026-07-03 05:12:47
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