I looked at it the opposite: We can sequester carbon in buildings this way. I haven't done any numbers and presume it's probably small for global warming, but I

I looked at it the opposite: We can sequester carbon in buildings this way. I haven't done any numbers and presume it's probably small for global warming, but I understand that using concrete put huge amounts of CO2 in the atmosphere, so maybe decreasing that contribution would count for a lot.