That depends. Cars are on the verge of being pretty cheap to electrify. Long-haul airliners, not so much. The smart thing would be to put a substantial price on carbon, give credit for sequestering, and let the market do the rest.
In the long term, we're going to need net negative emissions anyway. CO2 is already too high and is still rapidly increasing.
In the long term, we're going to need net negative emissions anyway. CO2 is already too high and is still rapidly increasing.