Like some way to fill up an empty parking lot at an empty office park or strip mall with portable self-watering containers that contain something like grass or bamboo or de-THC hemp.

No need to re-zone anything, just roll up with it while the land is not being used, soak up some carbon, and then move on if the land gets used again.

[1]https://www.spacefoundation.org/space_technology_hal/sewage-...