Putting sulfur into the right layers of the atmosphere seems to be the currently best viable options. It's not overly expensive, either. It acts fast and is reversible.

https://en.wikipedia.org/wiki/Stratospheric_aerosol_injectio...

So far all of the carbon capture techniques (apart from growing forests and keeping them protected) have been pretty unsuccessful, and/or don't scale well.

That leaves us in the realm of solutions that may be very likely to disrupt our ecosystem themselves, like genetically-engineering algae/phytoplankton to improve ocean carbon sequestration

I don't think carbon capture / sequestration is going to do enough, but if we continue slipping into this trajectory I think there will be more support for changing reflectivity (spraying sea water, or putting particles in the stratosphere).

There are currently no power efficient and scalable ways to remove carbon dioxide from air or water.

Renewables are considered woke technology which mock old and masculine fossil fuel tech, which feel threatened by all these white spinny things, hence renewable energy projects are being actively discouraged or canceled altogether.

You know, we'd be all woke and weird if our cars don't have 8 cylinders and make wroom sounds. Same for our chimneys and power architecture. Woke electrons should be banned. We need masculine, fossil based electrons, which are more powerful per electron than wind/solar based fluffy/hippie ones.

Needed to happen 30 years ago.

Now it’s drill baby drill time.