Mitigating Hidden Climate Change Impacts of Timber Cities Critically Depends on Proactive Forest and Waste Management
木材都市の隠れた気候変動影響を緩和するには、積極的な森林・廃棄物管理が不可欠 (AI 翻訳)
Alperen Yayla, Augustin Danneaux, Estelle Schurer, Meng Gao, Cagatay Demirci, Colin Rose, Stijn van Ewijk, Rupert J. Myers
🤖 gxceed AI 要約
日本語
本論文は、木材を用いた都市建築（木材都市）と鉄筋コンクリート建築の気候変動影響を動的ライフサイクル評価で比較。木材都市は2100年までに最大0.023Kの温度上昇抑制効果があるが、その後の森林再生不良や埋立地ガス放出、焼却により影響が逆転する可能性を示した。木材リサイクルと森林炭素吸収源の維持を両立する対策が最も効果的で、積極的な森林・廃棄物政策の重要性を強調している。
English
This study uses dynamic life cycle assessment to compare climate impacts of timber vs. reinforced concrete urban buildings. Timber cities can reduce global temperature by up to 0.023 K by 2100, but poor forest regrowth, landfill gas, and incineration may reverse this after 2100. Proactive forest and waste management, including maintaining forest carbon sinks, are critical to avoid negative outcomes.
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
日本の建築業界では木材利用促進が進むが、森林管理や廃棄物処理の実態が気候影響に直結する点で示唆深い。特に長期視点での政策連動が求められる。
In the global GX context
This paper provides a dynamic LCA framework that is globally relevant for urban planning and climate policy, highlighting the need to integrate forest and waste management into building material decisions. It challenges static GWP metrics used in current regulations.
👥 読者別の含意
🔬研究者:Dynamic LCA methodology applied to urban-scale material choices offers a novel approach for assessing long-term climate impacts.
🏢実務担当者:Timber building companies should consider end-of-life management and forest regrowth to ensure net climate benefits.
🏛政策担当者:Land-use and waste policies must be coordinated with building codes to avoid unintended warming from timber city expansion.
📄 Abstract（原文）
uptake from cement carbonation, and biogenic sequestration from biomass regrowth on their climate change impacts remain unclear. Here, we assess the climate change impacts of these dynamic factors on future urban buildings for urban growth between 2025 and 2100, using dynamic life cycle assessment across 14 pathways under various short- and long-term scenarios. Construction of urban buildings using timber ('timber cities') can lead to a global temperature increase that is up to 0.023 K lower by 2100 than that caused by their construction using reinforced concrete ('reinforced concrete cities'). After 2100, timber cities can lead to a temperature increase similar to or higher than reinforced concrete cities if there is poor forest regrowth, high landfill gas release, and incineration. If timber recycling leads to forest aging or deforestation due to reduced motivation for forest regrowth, global temperature can significantly rise compared to a scenario in which timber is recycled while simultaneously maintaining the forest carbon sink, which is the most climate-friendly option. Important global actions to minimize the climate impacts of future cities are (1) to support rapid and large-scale implementation of timber buildings in response to current high urbanization; (2) to proactively develop land, forest, and waste policies that limit future temperature increases caused by poor forest regrowth, landfill gas release, and wood incineration; and (3) to adopt dynamic life cycle assessment and related indicators such as absolute global warming potential in the built environment for climate-related policymaking, rather than using only global warming potential.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.est.5c12250first seen 2026-06-02 04:44:05 · last seen 2026-06-03 04:45:08
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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。