Interesting approach. When replacing Asphalt with concrete you have to produce more cement. Cement production is a massive CO2 contributor - approx. 7% of globa

Interesting approach. When replacing Asphalt with concrete you have to produce more cement. Cement production is a massive CO2 contributor - approx. 7% of global CO2. Would be interesting to learn if that was included in the calculations. If not it would also be good to know how the overall reduction if any - would change.