The laws of thermodynamics and fluid dynamics are both strongly against carbon removal. Upstream solutions are much more efficient. Nobody wants that shit but big corporations offering expensive, infrastructure-intensive boondoggles to milk the taxpayer.

Artificial carbon removal was never invested in because it was a good solution, it was invested in because it was an easy excuse. “We’re developing the technology to remove carbon, so no need to stop emitting it”.

It was about putting out headlines and creating a narrative that diffused public outcry. Enough people are now aware it’s infeasible at scale that it’s no longer useful as an excuse. So the investment is disappearing.