When we think about mitigating climate change, we tend to mostly think about energy and transport. It is important, however, to remember that climate change touches upon many more sectors. After the burning of fossil fuels and the consequences of land-use change, global cement production is the third largest source of anthropogenic carbon dioxide emissions (note the difference between carbon dioxide and greenhouse gasses). Being such a heavy emitter, the sector’s carbon footprint has to be reduced strongly if the goals of the Paris agreement are to be met. A new Swiss report shows that “by considering all the stages in the value chain, reductions of up to 80% CO2 emissions compared to the 1990 values is achievable by 2050.” But achieving such deep reductions will require efforts along the complete value chain.
ALTERNATIVES: Decarbonising global cement production