"气候治愈石":普通矿物质提供了显著的气候变化缓解潜力
Chris Pratt1, Zainab Mahdi2, Ali El Hanandeh3
1School of Environment and Science, Australian Rivers Institute, Griffith University, Kessels Road, Nathan, QLD, 4111, Australia.
Environmental management
|February 20, 2024
概括
基于矿物质的战略显示出减轻温室气体 (GHG) 排放的潜力,特别是二氧化碳 (CO2) 和甲 (CH4),全球资源丰富. 需要进一步分析以评估可扩展性和环境影响.
科学领域:
- 地球和环境科学 地球和环境科学
- 气候变化缓解缓解 气候变化缓解
- 地质化学 地质化学
背景情况:
- 温室气体 (GHG) 排放对全球气候稳定构成重大威胁.
- 现有的缓解策略面临着可扩展性,成本效益和公众接受方面的挑战.
- 地质矿物提供了一个潜在的,但尚未被充分探索的,大大减少温室气体的途径.
研究的目的:
- 审查和综合有关地质矿物的有效性在减轻温室气体排放方面的文献.
- 量化通过基于矿物质的方法实现的潜在温室气体减排,考虑到它们的碳足迹.
- 估计适合减缓气候变化的矿物质的全球可用性.
主要方法:
- 文献综合记录矿物质在各个部门温室气体缓解方面的有效性研究.
- 进行元分析以量化温室气体减排量,并纳入矿产应用的碳足迹.
- 评估全球矿产资源的可用性,以减缓气候变化.
主要成果:
- 像橄,亚洛,石膏和白石这样的矿物质在减轻二氧化碳 (CO2),甲 (CH4) 和氧化 (N2O) 排放方面表现出有效性.
- 基于矿物质的技术有可能减少大约9%的全球人为二氧化碳和11%的CH4排放.
- 通过矿物质减轻氧化 (N2O) 的作用目前受限于由于应用率高而导致显著的净碳排放.
结论:
- 基于矿物质的温室气体减排提供了一个有希望的,多益的方法,特别是当与现有的工业和农业实践相结合时.
- 全球主要矿物质的丰富性支持了大规模应用的潜力,但需要大幅增加产量.
- 进一步的成本效益和环境/社会足迹分析对于评估扩大基于矿物质的气候缓解战略的可行性至关重要.
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