How is that helping when the outdoor CO2-levels are elevated too much?
(Unter Schmutzatmosphäre verkackt! https://en.wikipedia.org/wiki/Packaging_gas)
(Unter Schmutzatmosphäre verkackt! https://en.wikipedia.org/wiki/Packaging_gas)
We gain 2 co2 per year.
And you can have an indoor garden