Italians continually get it right with concrete.
Paving the way to clean air. Cement developed in Italy can reduce airborne pollution By VIVIAN SONG http://www.torontosun.com/News/World...
Canada moves to reduce greenhouse emission 10% in cement manufacturing
"Contempra (Portland-Limestone Cement) : A New Environmentally-Friendly Cement Type" Source: http://www.cement.ca/en/Manufacturing ...
