Biochar co-benefits are valued in the voluntary carbon market
バイオ炭の副次的便益は自主的炭素市場で評価される (AI 翻訳)
Medilė Jokubė, Matti Hyyrynen, Sampo Pihlainen, Kari Hyytiäinen
🤖 gxceed AI 要約
日本語
バイオ炭による二酸化炭素除去（CDR）の普及は自主的炭素市場に依存しており、本研究ではヘドニック価格法を用いて、SDGsに関連する便益の主張がどのように炭素クレジット価格に反映されるかを分析。171件の取引データから、便益主張が1%増えるごとに価格が0.14%上昇し、経済的便益の主張は価格を押し上げる一方、環境的便益の主張は価格を下げる傾向があることを発見。市場が便益主張を評価するため、その監査が重要であると結論。
English
This study analyzes how Sustainable Development Goal (SDG) co-benefit claims affect biochar carbon credit prices in the voluntary carbon market. Using hedonic pricing on 171 transactions up to 2024, it finds that a 1% increase in co-benefit claims raises credit prices by 0.14%. Credits with more economic claims command higher prices, while those with more environmental claims are priced lower. The results underscore the need for auditing co-benefit claims to maintain market integrity.
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J-クレジット制度など炭素クレジット市場の整備が進んでおり、バイオ炭の副次的便益の価格評価手法は、国内のカーボン・クレジットの質向上や信頼性確保に示唆を与える。
In the global GX context
This paper provides novel empirical evidence on how non-carbon co-benefits are priced in the voluntary carbon market, informing global debates on carbon credit quality and the role of SDG claims. It is relevant for ISSB and other disclosure frameworks that consider social and environmental attributes.
👥 読者別の含意
🔬研究者:Provides a hedonic pricing method for valuing co-benefits of carbon removal credits, applicable to other CDR technologies.
🏢実務担当者:Highlights that buyers value economic and social co-benefits, which should be considered in credit marketing and project design.
🏛政策担当者:Suggests that auditing co-benefit claims is critical for market integrity, with implications for carbon market regulation.
📄 Abstract（原文）
Climate mitigation pathways towards global net-zero emissions targets commonly include large-scale deployment of carbon dioxide removals. Investment in novel carbon dioxide removal technologies is currently driven by the self-steering voluntary carbon market. Here we assess whether the upscaling of biochar carbon dioxide removals via voluntary carbon market can deliver sustainable development co-benefits. We use hedonic pricing to estimate how Sustainable Development Goal claims are reflected in biochar carbon credit prices in transactions up to 2024. The results show that biochar carbon credit prices increase by 0.14% for each 1% increase in associated co-benefit claims. Grouping co-benefit claims into environmental, economic, and social pillars reveals that credits with more economic claims tend to be priced higher, while those with more environmental claims tend to be priced lower. Since the market values co-benefit claims, auditing them is critical to verify their genuine contributions and to maintain the integrity of novel carbon dioxide removals. Biochar carbon credit buyers pay for SDG claims, with credits associated with economic and social benefits showing higher prices and those linked to environmental claims lower, in a hedonic pricing study of 171 voluntary carbon market transactions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s44458-026-00096-wfirst seen 2026-06-17 05:17:52 · last seen 2026-06-17 07:13:31
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