the final cost to consumers isn’t the only factor that matters. Suppose you’re an engineer working for the City of Seattle, and you’re reviewing bids to repair one of our many bridges. One bid comes in charging $125 a ton for cement, and another comes in charging $250 a ton, having added on the cost for carbon capture. Which one will you pick? Without some incentive to opt for the zero-carbon cement, you’ll go with the cheaper one.

