Before he had turned, in 1974, to herb-growing, he had been a journalist on the Wilmington Independent and the Northern Virginia Sun.

ECONOMIST: Tom DeBaggio

The next Challenge, which kicked off last week, is tackling urban agriculture, a radical approach to growing our food inside our cities (think more skyscraper farms than flower box herb gardens, although the project will address both).

FORBES: Imagining Skyscraper Farms