That would mean a carbon tax of $1000 per ton because direct air capture of CO2 and storing CO2 is on the same order of difficulty as storing nuclear waste. Pos

That would mean a carbon tax of $1000 per ton because direct air capture of CO2 and storing CO2 is on the same order of difficulty as storing nuclear waste. Possibly worse because CO2 is a gas that can leak out through tiny gaps so every storage site has to be inspected for leaks forever. Pumping CO2 underground is the equivalent of letting a tree capture CO2 with a random chance of the tree starting to rot and releasing all its CO2. The only realistic storage option is solid carbon and that is why I put the price tag so high.