6/21/2010

A number of companies nationwide are developing technology and techniques to meet the growing demand for rooftop gardening. Trenton Forging in Michigan is trying to come up with an energy-efficient way to warm a year-round greenhouse on its roof. Sky Vegetables wants to build hydroponic farms on roofs in major metropolitan cities. GreenGrid Roofs in Chicago sells a modular system of plastic bins that makes installing rooftop beds easier.

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