Cement from CO2: A Concrete Cure for Global Warming? - Scientific American
The turbines at Moss Landing power plant on the California coast burn
through natural gas to pump out more than 1,000 megawatts of electric
power. The 700-degree Fahrenheit (370-degree Celsius) fumes left over
contain at least 30,000 parts per million of carbon dioxide (CO2)—the primary greenhouse gas responsible for global warming—along with other pollutants.
Today, this flue gas wafts up and out of the power plant's enormous
smokestacks, but by simply bubbling it through the nearby seawater, a
new California-based company called Calera says it can use more than 90
percent of that CO2 to make something useful: cement.
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