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Concrete-Materials-Construction-Wood-Urbanism

Today, cities are home to more than half of the world's population, or more than 4.2 billion people. This number is expected to double by 2050 according to the World Bank, while the surface area of cities could be multiplied by 6 by 2100. The construction of new buildings and renovation represent two key sectors of the ecological transition. There are various solutions that would make it possible toThere are various solutions that could reduce CO2 emissions in the building sector: renovating thermal flats, developing low-carbon electricity production or "greening" the production of raw materials (steel, concrete, iron)... This last lever represents nearly 10% of greenhouse gas emissions in the building sector in 2020.

In addition to GHG emissions, there is growing concern about sand resources and the fact that concrete contributes to the erosion of biodiversity. Its role in soil artificialisation is such that the term "concreteisation" has become commonplace. 

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