Carbon dioxide as a structural component?

Yes–if you’re a coral.  Biologist Brent Constantz has formed a company to sequester carbon dioxide just as corals in the ocean do.  The strategy is simple–combine carbon dioxide, water, and calcium.  The carbon dioxide comes from the smokestacks of electrical power plants, and the water and calcium come from seawater.
The material produced is used to make cement that can be used to build buildings, just as corals build their limestone structures.  The first plant is capable of sequestering 550 tons of carbon dioxide per day.  With more plants scheduled to be built, this could make a significant impact on the level of carbon dioxide in the atmosphere.
Big buildings may one day be a sign of a carbon-capturing (rather than carbon-emitting) society…
Learn more about how carbon dioxide and global warming in our “What will Earth’s climate be in the future?” investigation.
Read the full article from Popular Science at: http://www.popsci.com/bown/2010/innovator/cement-thin-air

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