The human footprint is defined today as the “energy quantities, resources and products consumed by a human during [their] lifetime," according to researchers.

Imagine walking into a grocery store where every product has a clear carbon label: “The making of a pound of beef produces 130 pounds, or 59 kilograms, of greenhouse gases and could ultimately take ...

PBS’ Human Footprint makes a stop at Omega Mart for its “Shelf Life” episode.