Biogenic Carbon Storage in the Technosphere.
テクノスフィアにおけるバイオ炭素貯蔵 (AI 翻訳)
Kaan Hidiroglu, S. Nonhebel, Franco Ruzzenenti, Martin Bruckner, Alessandro Martulli, Klaus Hubacek
🤖 gxceed AI 要約
日本語
2011年の世界マルチリージョン供給使用表を用いて、耐久財や埋立地に貯蔵されるバイオ炭素の年間フローを0.96±0.15 GtCと推定。製品寿命の制約により2050年までに46%が放出される可能性があり、寿命延長やリサイクル率向上、埋立地管理改善の重要性を指摘。埋立地管理の改善によりメタン関連温暖化影響を最大16%削減できる。
English
This study quantifies annual biogenic carbon flows into durable goods and landfills globally in 2011 using MRIO tables, finding 0.96±0.15 GtC stored. Due to product lifetimes, 46% is discharged by 2050. Improved landfill management could cut methane-related warming impacts by up to 16%, highlighting the need for extended product lifetimes and recycling.
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
本論文は、耐久財や埋立地に蓄積されるバイオ炭素の定量化手法を提供。日本企業のサプライチェーン排出量算定（Scope3）や、SSBJに基づく気候関連開示において、バイオマス製品の炭素貯蔵効果を評価する際の参考となる。
In the global GX context
This paper contributes to global carbon accounting by detailing biogenic carbon flows in the technosphere, with implications for lifecycle assessment and climate policy. It underscores the temporal dynamics of stored carbon, relevant for TCFD/ISSB disclosures on carbon removals and storage.
👥 読者別の含意
🔬研究者:Researchers can adopt the material flow analysis framework for national or sector-level biogenic carbon storage assessments.
🏢実務担当者:Corporate sustainability teams can use the lifetime-based discharge modeling to evaluate the carbon storage benefits of durable biogenic products and inform product design.
🏛政策担当者:Policymakers can consider extending product lifetime requirements and improving landfill methane management as climate mitigation strategies.
📄 Abstract（原文）
Considerable amounts of biogenic carbon (bio-C) are stored in the global technosphere, yet the magnitude, distribution, and longevity of this storage remain poorly understood. This study quantifies annual bio-C flows into durable goods (gross additions to stock, GAS) and landfills across the global economy using Multi-Regional Supply-Use Tables and detailed extension accounts for 2011. We develop a novel material flow analysis framework that distinguishes feedstock uses from GAS, and apply lifetime-based discharge modeling until 2100 to track end-of-life bio-C fate across recycling, landfill, and emission pathways. In 2011, 0.96 ± 0.15 gigatons of bio-C (GtC/year) was stored in GAS and landfills. However, product lifespans constrain long-term storage potential as 46% of stored carbon is going to be discharged before 2050. Sensitivity analyses on product lifetime assumptions, lifetime distribution functions, and the methane generation factor in landfills reveal substantial variability in both the retention of bio-C and the timing and magnitude of associated emissions. Furthermore, improved landfill management could reduce cumulative methane-related global warming impacts by up to 16%. Our findings highlight the temporal dynamics of bio-C storage in the technosphere and underscore the importance of extending product lifetimes, increasing recycling rates, and improving landfill management to support climate change mitigation strategies.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1021/acs.est.5c09195first seen 2026-06-23 06:07:21
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