Again, follow Martin, you can cite him as

Martin Röck (RISE),

how cool is that?

This is the place for all the good data around construction that your country is still likely to hide from you bc it would change construction over night, just like renewable energy and heatpumps do with heating.
Reposted from Martin Röck
🪨Detailed quantification and analysis shows raw material supply (A1) contributes 80 % of total GWP, followed by transport (A2) at 1 %, production (A3) at 7 %, transport to site (A4) at 3 %, construction (A5) at 3 %, use phase (B1-B3) at <1 %, waste processing (C3) at 1 %, and disposal (C4) at 3 %.

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