To say that concrete poses a decarbonization challenge would be an understatement. Cement production alone is responsible for somewhere between 5 and 10% of global CO2 emissions [0], roughly two to four times more than aviation, a fact that even the construction industry is finally coming to grips with. And yet the real problem with decarbonizing concrete isn’t the scale of its emissions, it’s the scale of concrete itself. There is simply a preposterous amount of the stuff. Contemplating ...
