I'm going to make just one prediction for 2009:
Urban gardens will become as de rigueur as weekly trips to the farmer's market.
Of course, I'm not the first to notice the idea of urban food production coming into the forefront. Last year saw the launch of San Francisco's Victory Garden pilot project and Wired magazine had an article on Urban Farming as well. Most likely you saw Slow Food Nation's Victory Garden at City Hall or you may have even heard about Graze the Roof, a Summer rooftop edible garden at Glide Memorial. While those projects are over, the idea of producing food in an urban setting has only just begun.
If you want to become an urban farmer, consider enrolling in Alemany Farm's Apprenticeship in Ecological Horticulture. It's a year long hands-on program that will teach core principals of food production such as soil fertility and composting, propagation and planting, seasonal tree care, water-wise irrigation, plant identification, integrated pest management, and crop planning.