Yes, the manufacturing of cement is responsible for a disproportionate amount of the greenhouse gases in the atmosphere, and though they are looking for cleaner ways, not much can be done. And, cement is in high demand. There is currently one ton of cement for each person on the earth.
There is probably WAY more than one ton of cement for each person (about 7 billion) on earth, since annual cement production amounts to almost 3 billion tons every year. So we equal one ton per person in less than 2.5 years.
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