It seems pretty obvious that extracting a gas that is less than a tenth of a percent in the air is inherently difficult. That said: I'm all for investing in DA

It seems pretty obvious that extracting a gas that is less than a tenth of a percent in the air is inherently difficult. That said: I'm all for investing in DAC technology. We will definitely need it for some sectors. But you need to consider the costs and if there are alternatives they will in many cases make more sense.