Limitations of Climate Engineering Efficacy by different types of RADiation MANagement

二氧化碳减排、适应和气候工程(CE)被广泛理解为应对有害气候变化的三种独立方法。在这个项目中，我们通过研究通过硫酸盐气溶胶注入(SAI)和海洋云增亮(MCB)作为手段来降低全球/区域气温的太阳辐射管理(SRM)的局限性，对这一假设提出了挑战。这是首次对这两个最常被讨论的SRM方案的局限性进行定量预测的全面尝试。这将首次包括同时量化SAI和MCB的局限性。我们推测，这些限制可能会对将缓解、适应和气候工程措施(包括气候公平政治)联系在一起的法律和政治影响产生深远影响。包括详细的气溶胶和云微物理在内的高级大气数值模式被用来确定两种固体火箭发动机技术的物理极限。然后，这些结果将构成战略文件的基础，以便对不同的合法CE治理制度以及二氧化碳缓解、适应和气候工程之间的相互作用进行综合评估。

CO2 abatement, adaptation and climate engineering (CE) are widely understood to be three independent approaches to addressing harmful climate change. In this project, we challenge this assumption by examining the limitations of solar radiation management (SRM) by means of Sulfate Aerosol Injection (SAI) and Marine Cloud Brightening (MCB) as instruments to lower global/regional temperatures. This is the first comprehensive attempt to quantitatively predict the limitations of these two most frequently discussed SRM schemes. This will include for the first time the quantification of the limitations of SAI and MCB in parallel. We surmise that these limitations are likely to have a profound impact on legal and political effects that link and sequence mitigation, adaptation and climate engineering measures including the politics of climate equity. Advanced atmospheric numerical models encompassing detailed aerosol and cloud microphysics are used to ascertain the physical limits of both SRM techniques. These results will then form the foundation within the SPP for an integrated assessment of different legal CE governance regimes and the interactions between CO2 mitigation, adaptation and climate engineering.