Windy City Harvest
Windy City Harvest built a 7,300 square foot greenhouse where seasonal veggies grow year round. A 50,000-gallon aquaponics system produces 2,500 heads of lettuce every week, year-round, and 14,000 pounds of tilapia each year.
SEE: Earth Day: Green Tech Tips & Tricks (TechRepublic on Flipboard)
Image: Windy City Harvest