The Science of Sustainability

Tag: cement

Could your driveway be poisoning your kids?

Could your driveway be poisoning your kids?

Parking lots coated with coal tar, a gooey black waste product of steel manufacturing, shed the coatings at a high rate. This toxic residue is showing up in dust on nearby apartment surfaces.

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Cementing a More Sustainable Future

Cementing a More Sustainable Future

A team of innovative students at UNC Charlotte develop a game-changing material poised to improve the way we build our cities and our homes.

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Reporter's Notes: Building Blocks Go Green

Reporter's Notes: Building Blocks Go Green

I got interested in this story after hearing Silicon Valley venture capitalist Vinod Khosla speak at a conference this fall in Sausalito. He explained how he decides where to invest in green tech and it was fascinating. He and other top venture capitalists think they can help stop global warming and make a ton of money at the same time.

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Cement – A Dirty Business

Cement – A Dirty Business

Thought California has consigned coal-burning to the scrap bin? Think again! California has 11 coal-fired power plants, all used to heat limestone into cement — making us one of the biggest cement-producing states in the country. In addition to cement, these kilns produce 95% of the state's airborne mercury pollution and 2% of its greenhouse […]

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