Everyone should take a local Permaculture design course. Period. yes, there will be lots of CO2 'global warming' BS and 'Peak Oil' nonsense, but suburbia could and should become a heavy food production area with intelligent design.
Everyone with a lawn can convert it into a garden with a layer of nitrogen, organic hopefully, if not, so be it (you can use urine). Followed by non-dyed cardboard, followed by compost, followed by mulching hay (if people can get it in Vancouver BC, everyone reading this can surely find it somewhere). Water it daily and viola, in a few months you have rich topsoil, built by you. Add whatever you want as far as mulch goes, leaves, lawn clippings, anything organic really...and do it soon.
Look up 'sheet mulching' and read this article...google it yourself..."Permaculture: The Quiet Revolution".
There are not enough small farmers to feed us all at this point, we'll have to provide for ourselves and our families and more than likely our dumb neighbours!