The researchers explained that concrete is the most widely used man-made material.
According to think tank Chatham House,cement is the source of about 8% of the world's carbon dioxide emissions. If the cement industry were a country, it would have the third largest emissions in the world - after China and the United States. It emits more CO2 than aircraft (2.5%) and agricultural activities (12%).
Cement industry leaders gathered forUN Climate Change Conference - COP24 to discuss ways to meet the requirements of the Paris Agreement on Climate Change. To do this, annual emissions from cement will have to be reduced by at least 16% by 2030.
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At the same time, cement production increased by more thanthirty times since 1950 and nearly four times since 1990. Between 2011 and 2013, China used more cement than the US in the entire 20th century. At the same time, it is not yet clear how to replace the material - it is easy to manufacture and strong, therefore it is often used in construction.
“We believe the construction industry is closeby the time when alternative materials will be used more widely, the researchers noted. "This is partly due to market demand, other innovative technologies and broader concerns about climate change."
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