Well, you gotta compare the cost-per-kilo of setting up a coffee grounds collection program that gathers X% of the 30+ billion ton/yr of concrete that is used each year.
If the regulations are not properly written, they could be an incentive to start cutting down trees to turn to charcoal as a carbon filler. Companies are sometimes heartless like that.
It would still probably be a better carbon capture plan than capturing it for temporary use in the fuel supply as ethanol. But worse of a measure than just burying the trees
If the regulations are not properly written, they could be an incentive to start cutting down trees to turn to charcoal as a carbon filler. Companies are sometimes heartless like that.