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Create an energy efficient system for carbon capture from the atmosphere and the oceans. Something that can be used at the sites for heavy emitters and also generally around the world.
Create a system to collect the captured carbon and bring it to a central site.
Fire that carbon off into interstellar space.
Use the revenue generated from fees from heavy polluters who can't decarbonise effectively (things like steel making, glass works, air travel) to fund low carbon energy projects and storage/distribution systems for developing nations like in sub-saharan Africa and SE Asia.
"fire that carbon off into interstellar space"
You probably would generate more carbon doing that (because of rocket science)
Best thing would be putting it back where it came from -> deep underground
My infinite money has built a space elevator to eliminate the need for rocket launches.
Infinite money gives you as many nuclear reactors as you want, then you can make arbitrary amounts of rocket fuel by electrolys of water.
It'd still probably be better to shine LEDs at lots of kelp in bits of the sea where there's not enough natural light for kelp, burn the kelp into charcoal, and bury the charcoal, though.