simon comments on Can we really prevent all warming for less than 10B$ with the mostly side-effect free geoengineering technique of Marine Cloud Brightening?

[simon]

For some further perspective, $10 per ton at 1.25 times removal of CO2 would be $8 per ton of CO2. So, we could theoretically pay for it with a relatively affordable $8 per ton global carbon tax if that could somehow be made to work politically.