Here's a good one:
It makes sense to remove CO2 from the oceans and let them rob it from the atmosphere. The oceans have 150x the atmosphere and it can be recovered in a single step.
He concludes with the sensible suggestion that it not be taken for an excuse for 'business as usual'.
But.... they're suggesting scraping the limestone off a steel mesh drum and dropping it back in the ocean. If their 'flow reactor' were a build chamber filled with steel mesh armatures they could produce building components ....or ashtrays, or anything that could be made out of seashell material.
Done right, it could have the microscale structure of abalone.