Eco Material Technology's green cement plant in Derry Township, PA. The landfill from which the EMT mines ash is the terraced hill in the background of the plant in the foreground. Stopping cement ...

Cement is one of those materials you don’t think about until it breaks — until the bridge you drive across, the house you live in, or the sidewalk you walk on shows cracks. Yet it is everything ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. This story was reported by Floodlight, a nonprofit newsroom that investigates the ...

Princeton researchers believe seashells might just hold the key to stronger concrete.