Human Footprint

Shane travels from New York City to rural Thailand to explore the Human Footprint of the supermarket - a 20th century innovation that transformed our relationship with food, reshaping our bodies, our society, and our planet along the way.

In humankind's conquest of planet Earth, improbable allies -- species recruited from nature -- are relied on to help defeat adversaries.

From runway to throwaway, a look at the global impact of fashion trends.