Re:Satellite finds methane leaks from gas pipelines
by bumby on Saturday February 05, 2022 @09:18AM
(#30221195)
I've heard similar about concrete as well, but have had a difficult time putting it in context.
"Cement (3%): carbon dioxide is produced as a byproduct of a chemical conversion process used in the production of clinker, a component of cement. In this reaction, limestone (CaCO3) is converted to lime (CaO), and produces CO2 as a byproduct. Cement production also produces emissions from energy inputs – these related emissions are included in ‘Energy Use in Industry’."
Unfortunately, it doesn't further breakdown what percentage of the cement energy inputs contribute to GHG emissions.
"Cement (3%): carbon dioxide is produced as a byproduct of a chemical conversion process used in the production of clinker, a component of cement. In this reaction, limestone (CaCO3) is converted to lime (CaO), and produces CO2 as a byproduct. Cement production also produces emissions from energy inputs – these related emissions are included in ‘Energy Use in Industry’."
Unfortunately, it doesn't further breakdown what percentage of the cement energy inputs contribute to GHG emissions.
https://ourworldindata.org/ghg-emissions-by-sector