Sentences with phrase «cement manufacturing emitted»

During the 1980s, fossil fuel use and cement manufacturing emitted an average of 5.4 billion (5,400 million) tonnes of carbon (in the form of CO2) per year.

Not exact matches

At least 70 % of the carbon dioxide emitted in the manufacture of concrete derives from the manufacture of Ordinary Portland Cement: each ton of that cement creates 0.75 - 1.0 ton of carbon diCement: each ton of that cement creates 0.75 - 1.0 ton of carbon dicement creates 0.75 - 1.0 ton of carbon dioxide.