0_Apprentice
I live in the country and have a big garden.  I understand there is a big push in cities for urban agriculture though.
1_Wizard
In urban areas, people need more access to fresh produce
0_Apprentice
Where do they put gardens?  In the city park?
1_Wizard
These agricultural areas can be integrated into local town planning.  But I have heard of roof gardens.
0_Apprentice
Roof gardens?  Tell me how they manage that.  I would think the dirt would be too heavy and put too much strain on the roof.
1_Wizard
Peri-urban  agriculture may have different characteristics. For example, you might not use real soil.
0_Apprentice
Really?  I have heard of hydro-plants.  Do they use water instead?