I'm really curious about marine cloudseeding as a potential mitigator to permafrost melt. Essentially, high-efficiency saltwater aerosolization to create nuclei for cloud formation...
The climate changes with or without human behaviour. Only 8000 years ago, you could walk from England to Europe! So we need solutions for managing climate stability, not just cleaning up after humans.
Well, if we fail to develop solutions to clean up after ourselves, we won't need to worry about climate stability because we'll all be dead. So that's one way to handle things.
Here is a 2019 paper on the critical role of clouds in arctic cooling https://www.nature.com/articles/s41598-019-44155-w#Sec7