[HardEric]

there are lots of uses for concentrated CO2. A few current uses include dry ice (shipping vaccines or other medical supplies), green houses, concrete, beverage carbonization, pumping it under ground into depleted oil wells for permanent storage, and refrigeration cycles.

There are also a lot of technologies in progress to use CO2, such as turning it right back into synthetic fuels!

The list goes on and seems to be growing by the day.