If you think that urban growing won't work in the big cities then I believe you are wrong. Growing your own vegetables in small spaces is fun, makes you appreciate your food and can deliver surprisingly lots of veggies. Below you will find an articles that backs my statement
"…food producers). The simple act of growing some food, and acquiring food empathy, can make us happy, healthy and more sustainable. Seismic change At Grow It Yourself (GIY), we believe the food empathy…"
It is a lot of fun to grwo your veggies and I will start growing cucumbers and strawberries on my small appartment at the end of the month myself!. I will keep you informed about my results