I was thinking about this recently. If we had an efficient way to sequester atmospheric carbon at scale, particularly if it could be done in such a way that it was backwards compatible with existing gasoline and/or diesel engines (perhaps in a formulation with biofuels and/or other sustainably sourced fuels), wouldn't it be preferable to roll that out "overnight" rather than rely on replacing the majority of existing cars with electric alternatives? Maybe there would still be room for both if gas and electric have properties that are nice for different use cases, but at least you wouldn't have to significantly prefer one over the other for environmental reasons.

Further, wouldn't this essentially solve the storage problem with renewables? If the tech were easily scalable / didn't rely on any scare materials, it would essentially be a type of battery that could be used in combination with existing fossil fuel plants (and nuclear of course) for baseline load.

Which, now that I think about it, would actually make any kind of green new deal much more politically viable. If the fossil fuel plants and gas stations get to keep running, it's that much fewer jobs we're axing and hoping to replace with better alternatives.