@robbie_andrew @CharlieJGardner @COP26 @HaahrMarianne @CHerweijer Yeah. That's why I tapped you. The 65% is per the 2011 doc p56: "default CaO content in clinker of 65% is recommended, corresponding to [0.51] CO2/clinker".

I get it. But I can't get to 0.4 stated by the UN, but it will set a benchmark. Very worrying if it's a howler. Seriously
@robbie_andrew @CharlieJGardner @COP26 @HaahrMarianne @CHerweijer @SvenTeske
Dear Dr. Teske. Hopefully the thread above will make sense. From where does your report's p.59 "Sectoral pathways to net zero emissions" derive the 0.4 CO2/clinker ratio:
"process emissions...are assumed to decline evenly from 0.4 tCO2/t clinker in 2017–25..." 🙏

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