In my "Aluminium sheet rolling" process, when produce 1kg sheet, come out 0.40747kg aluminum scrap, and the scrap link to a treatment process.
But when I calculate the "Aluminium sheet rolling" process, the treatment process causes no carbon footprint.
And I have tried to calculate the treatment process directly, I got the result as below.
I don't know why the carbon footprint of treatment doesn't contribute to the "Aluminium sheet rolling" now. It means it used to be, but I don't know what have changed.
By the way the LCIA method I use always the same.
