GHG emission from cement manufacturing

Concrete is one of the most widely used building materials in the world. About one tonne is consumed per person in the world. However, the production of Portland cement, an essential constituent of concrete, leads to the release of significant amount of CO2, a greenhouse gas (GHG) – producing one tonne of Portland cement produces about one tonne of CO2. Worldwide, cement making accounts for approximately 5% of global CO2 annual emissions.
source: Ecosmart Concrete See also XlnkS47B

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