Front yards transformed to tiny crop farms in Los Angeles provide vegetables to dozens of families and use a fraction of the water needed by grass. Front yards transformed to tiny crop farms in Los Angeles provide vegetables to dozens of families and use a fraction of the water needed by grass. Global Warming, Greenhouse Gas Emissions, Vegetables, Gardens and Gardening, Sustainable Living, Food, Agriculture and Farming, Lawns, California, audio-positive-happy NYT > Science