净零碳体现在建筑物中,拥有当今可用的技术
Takuma Watari1,2, Naho Yamashita3, André Cabrera Serrenho2
1Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan.
Environmental science & technology
|January 16, 2024
概括
在日本,到2050年在建筑物中实现净零体内碳是可以实现的,使用目前的技术. 增加木材使用和负责任的林业提供了显著的排放节约和增强森林碳吸收.
科学领域:
- 环境科学 环境科学
- 可持续的建筑 可持续的建筑
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 建筑工程是温室气体排放的主要来源,对气候危机作出了重大贡献.
- 目前用于建筑行业脱碳的战略不足,需要创新的方法.
研究的目的:
- 评估到2050年在日本建筑行业实现净零碳的可行性.
- 确定减少建筑施工碳排放的关键技术和战略.
主要方法:
- 利用系统分析方法,模拟日本建筑行业的排放减少.
- 评估了各种技术的影响,包括脱碳电力,低碳材料 (钢铁,混凝土),增加木材施工,优化设计和延长建筑寿命.
- 评估了通过扩大国内木材供应和再造林来提高森林碳吸收的潜力.
主要成果:
- 在日本,到2050年,使用现有技术,可以在建筑物中实现净零碳.
- 增加木结构的使用提供了最大的排放节约,到2050年每年可能达到35%左右.
- 负责任的森林再生和森林-城市碳循环可以在不扩大森林面积的情况下将森林碳吸收增加60%左右.
结论:
- 脱碳建筑依赖于现有技术和设计原则的战略实施,而不是未来的创新.
- 结合森林资源和城市发展的循环经济方法可以对减缓气候变化做出重大贡献.
- 该研究为实现可持续建筑实践和减少建筑行业对环境的影响提供了路线图.
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