All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.
Clean gardening with hydroponic systems are the way to go! You can have your own food grown in pure water free from synthetic pesticides, antibiotics and all sorts of harmful things you dont want in your food.
First attempt at the Kratky method of hydroponics - Hydroponics Forum - GardenWeb: “Break-Through Organic Gardening Secret Grows You Up To 10 Times The Plants, In Half The Time, With Healthier Plants, While the "Fish" Do All the Work.