Cement production accounts for 8% of global emissions, and it will rise as nations get richer and build more. It’s mainly because of the energy needed for the high heat process, and the carbon released from the limestone used. It’s one of the leading hard-to-abate sectors, and coming up with an alternative process and cement recipe is firmly on the industry’s agenda. Josie Garthwaite at Stanford University summarises a study that aims to replace … [Read more...]