Hers explores what food deserts are, how they get that way, and how you can take action—whether you live in one or not.

Nearly 19 million people in the US live in a food desert: ... In 2008, the United States Congress asked the USDA to map out where food deserts exist and how they affect public health.

Nearly 19 million people in the US live in a food desert: ... In 2008, the United States Congress asked the USDA to map out where food deserts exist and how they affect public health.