Decarbonization is costly @TheEconomist says but then spells out that "making cement with a third less carbon adds some 15%

Decarbonization is costly @TheEconomist says but then spells out that "making cement with a third less carbon adds some 15% to the cost”. If that can be generalized it is HUGE & not actually very expensive at all.
economist.com/business/2021/…
Can it be true?
carbonbrief.org/qa-why-cement-… https://t.co/kDJx010zVV

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