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脱碳水:将自愿碳市场应用于全球水安全的潜力

John Ecklu¹, Christina Barstow¹, Laura MacDonald¹

¹Mortenson Center in Global Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States.

ACS ES&T water

|June 21, 2024

概括

气候变化加剧了水资源不安全,影响全球数十亿人. 自愿碳市场 (VCM) 提供了一个可持续的融资流,通过利用减排信贷,有可能为水项目筹集超过1600亿美元.

科学领域:

环境科学环境科学
气候变化研究气候变化研究
水资源管理水资源管理

背景情况:

全球水资源不安全是气候变化的重要后果,影响全球数十亿人,不成比例地影响低排放国家.
水资源部门对全球排放做出了重大贡献 (10%),突出了水资源管理和气候减缓之间的关键联系.
水源安全日益被认为是一个具有深远经济影响的全球性挑战.

研究的目的:

探索自愿碳市场 (VCM) 作为解决全球水资源不安全问题的可持续融资机制的潜力.
在VCM中量化与水有关的碳项目的金融投资潜力.
检查实施VCM资助的水安全倡议的障碍和机会.

主要方法:

对与水有关的碳项目和自2010年以来产生的减排信用数据的历史数据分析.
估计各种水项目子部门的全球年度减排信用潜力.
经济建模以预测潜在的投资流入基于碳信用值的水安全倡议.

主要成果:

自2010年以来,与水有关的碳项目已经产生了超过4500万个减排信用.
据估计,水项目子部门的全球潜力每年超过16亿tCO2e.
在接下来的十年里,VCM融资可以吸引超过1600亿美元的投资,平均每笔信贷10美元.

结论:

风险投资计划为引导私营部门资本向全球增强水安全提供了重要机会,特别是在气候脆弱地区.
案例研究证明了VCM在各种水资源计划中的适用性,从饮用水到废水处理.
解决诸如高干预成本和技术限制等障碍对于扩大VCM支持的水安全解决方案至关重要.

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