The concrete is made from gravel, sand and cement and poured into molds made of rubber and fiberglass. Once it has set, it's pulled from the mold and left to thoroughly dry. Then it's either sold in ...

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 ...

Analisa Novak is a content producer for CBS News and the Emmy Award-winning "CBS Mornings." She specializes in covering live events and exclusive interviews for the show. Analisa is a United States ...

MICHIGAN CITY, Miss. (AP) — Lions and tigers and bears. Oh my! And alligators, elephants and giraffes. Say what? Throw in rabbits, bulldogs, gnomes, tiki heads, gargoyles, owls and armadillos not to ...