Fizzy water on tap

The best way of reducing environmental pollution is to find a use for the 'nasty' which is causing the problem

Example: coal tar dyes discovered. Waste products of gas works put to good use. Ladies suddenly happy to be fashionable in mauve. Problem solved

Now I am certainly not a chemist. But I offer one possible solution to the problem of CO2: fizzy water on tap via the mains in every home & work place. Problem solved