In abandoned lots, on school playgrounds, in fish tanks, or even on a window sill. Gardening is going back to its roots and flourishing in the big cities where much of the world's population lives. Urban gardening, as it is called, is an attempt to reverse a trend that began in this century with the growth of large farms, and the development of food processing and refrigerated trucks. For thousands of years, farms and gardens were located within the town limits. I don't know With urban gardening, fresh food is springing up alongside skyscrapers and highways.
Some urban gardeners harvest the fruits of their labor to fill community food banks.
The United Nations estimates that city farming now accounts for 15 percent of the world's food production and that number is growing all the time. In the United States that's good news, especially since many supermarkets are abandoning inner city neighborhoods and forcing communities to rely on high priced convenience stores for their food supplies. Modern urban farming is more than just tossing some seeds into dirt. In fact, with hydroponic gardening, plants don't need dirt, just some gravel or other material to keep the plants in place. Fish and other water life can be raised and harvested in tanks, ponds, and rivers.