Sure – but I’m willing to bet that we can make butter far more efficiently by cutting out CO2 as a middle man, and e.g. utilizing plant waste more directly in

Sure – but I’m willing to bet that we can make butter far more efficiently by cutting out CO2 as a middle man, and e.g. utilizing plant waste more directly in a chemical plant. To be clear: I’m not saying that all research on CO2 utilization is wasted. I’m all for e.g. research into CO2 as a heat pump refrigerant, or feeding CO2 from composting into green houses. But the moment you want to use either industrial CO2 or direct air capture for something else then offsetting global warming, then I think it’s a bad idea.