Under the hills and valleys of Carroll County geologists find an odd assortment of rocks – products of earth’s complex geologic history. limestone, a sedimentary rock, is one we have in abundance.

The world has plenty of limestone. And plenty of excess carbon dioxide, thanks to us. A startup called Heirloom uses limestone to capture carbon dioxide, then permanently and safely stores it. Sounds ...

After the limestone is mined, it is crushed and kept in silos prior to entering the kiln. During the filling and emptying process, lime creates a large amount of dust. The material can become sticky ...

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