通过未来的LCA对丹麦建筑业的绝对可持续性评估
Lise Horup1, Simon Bruhn2, Endrit Hoxha3
1Department of Environmental and Resource Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark; Rambøll, Denmark.
The Science of the total environment
|February 11, 2025
概括
技术进步本身无法确保可持续的建筑. 转向生物基材料和减少建筑活动对于实现环境目标和避免负担转移至关重要.
科学领域:
- 环境科学 环境科学
- 建筑部门的可持续性 建筑部门的可持续性
- 生命周期评估 生命周期评估
背景情况:
- 建筑业对环境产生重大影响.
- 目前的生命周期评估 (LCA) 方法可能无法充分支持未来的可持续发展目标.
- 技术进步通常被认为是推动环境改善的因素.
研究的目的:
- 评估未来生命周期评估 (pLCA) 和绝对环境可持续性评估 (AESA) 建筑环境战略的组合.
- 调查技术进步的潜力,以实现丹麦建筑行业的绝对可持续性目标.
- 确定缓解策略,以弥合当前环境影响与绝对可持续性目标之间的差距.
主要方法:
- 使用了与绝对环境可持续性评估 (AESA) 集成的前性生命周期评估 (pLCA).
- 进行了丹麦建筑业的案例研究,模拟了未来的建筑 (2025-2050年).
- 分析了16个环境影响类别,包括气候变化和土地利用.
主要成果:
- 未来丹麦的建筑工程预计将超越星球的界限,即使技术进步.
- 为了实现可持续性,必须大大转向生物基材料和减少建筑活动.
- 用生物基材料取代传统材料在气候变化和土地利用影响之间进行了权衡.
- 预期的背景系统变化可能会增加对金属和矿物的土地和资源使用.
结论:
- 技术进步本身不足以实现可持续的建筑实践.
- 缓解策略必须包括材料替代 (例如,生物基) 和潜在的建筑活动减少.
- 目前的LCA方法需要调整,以支持快速减缓气候变化的决策,并防止意外的负担转移.
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