CalStar Cement says it will tackle one of the unrecognized sources of greenhouse gases: cement.
The company, which is still operating in stealth mode, hopes to later this year unveil its plans for bringing a high-quality cement to market that requires far less energy to manufacture than the conventional stuff, according to sources close to the company. Consuming less energy directly results in fewer greenhouse gas emissions.
And cement takes a lot of energy. Making cement involves a mixture of burning limestone and clay together at very high temperatures ranging from 1,400 to 1,600 degrees Celsius. Many factories … Read more