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Innovation Earth: A Rooftop Farm, Coming Soon to Your Supermarket

By Jennifer Grayson

We Americans, living in the land of fast-food drive-throughs and cardboard tomatoes for some time now, are starting to gain an appreciation for high-quality food. The number of farmers markets in the U.S. has grown by more than 60 percent in the past five years alone. “Farm-to-table” restaurants are now de rigueur in nearly every U.S. city.

But we also still have a taste for cheap food. Americans spend less on food than in any other country in the world — six percent of our total household expenditures. Local food may now be a …read more

Source: Huffington Post Green