[davidw]

Seems like a good job for a carbon tax to change the economic calculations involved. Perhaps for some, the speed would be worth it, but they'd be paying for it.

[hanniabu]

The more credits they buy, the more expensive they should become

[mLuby]

Yes, because the carbon-emitting companies are having to buy those credits from carbon-reducing companies.

The more demand there is, the more incentive there is for carbon-reducing companies to arise.