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Ingredient for concrete is calcium oxide, which is won from calcium carbonate, releasing carbon dioxide. Calcium carbonate is limestone. Thus: Making concrete t
by blueflow 4y ago
Ingredient for concrete is calcium oxide, which is won from calcium carbonate, releasing carbon dioxide. Calcium carbonate is limestone. Thus: Making concrete takes carbon from the ground and puts it into the air. This is climate-wise as irreversible as a coal plant.
- peteradio 4y agoI'm under the impression there is a reabsorption of carbon over its lifecycle. Is that not the case?
- blueflow 4y agoIt does, but in amounts i would consider neglegible for climate concerns. As a form of corrosion its relevant for materials engineering.
- peteradio 4y agoA holistic treatment would not ignore such things. Housing is obviously not a strictly climate constrained problem.
- blueflow 4y agoIf we stop digging out carbon out of the ground to insert it into the carbon cycle, that would be a real good solution to be carbon neutral. I hope that qualifies as holistic to you, because its at the source of the problem.