Even if we were to take this guy's word for it (which we obviously shouldn't)... > it should be easier to enforce environmental regulations on deep ocean minin

Even if we were to take this guy's word for it (which we obviously shouldn't)... > it should be easier to enforce environmental regulations on deep ocean mining as the mining operations will be international waters Precisely which regulations are you talking about, and who do you imagine enforcing them? The International Seabed Authority, of which the US is not a member state, and whose Law of the Sea Convention they have repeatedly declined to ratify? Good luck with that.