FACTBOX-Cement: the carbon cost of construction [Reuters]
HEIDELBERGCEMENT UNSP/ADR (HDELY)
NASDAQ:AMEX Investor Relations:
heidelbergcement.com/en/investor-relations
Company Research
Source: Reuters
The key ingredient in concrete along with sand, gravel and water is cement. It takes a lot of energy to make and carbon dioxide (CO2) is also released during the manufacturing process. Here are some quick facts about cement's usage, its carbon footprint and efforts to reduce it: - At 2.4 gigatonnes, cement production accounted for 7% of global CO2 emissions in 2019, according to the International Energy Agency (IEA). If it were a country, cement would have ranked third that year behind China and the United States and ahead of India in terms of emissions, IEA data bit.ly/3aBVwKL shows. - Much of its carbon footprint is linked to its main constituent, clinker, which is produced in kilns at temperatures of about 1,450 Celsius (2,640 Fahrenheit) from limestone, clay and other materials. Emissions come from the decomposition of limestone in the process and the fuel used to heat the kilns. - Efforts to cut emissions include using more efficient kilns, switching to lower-carbon fuel
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