The good news for population growth, however, is that the relatively large (and culturally diverse) Millennial generation is, in fact, having children. The actual number of births for 2013 is estimated to have increased for the first time since 2006.

We’ve long recognized that what we eat affects our health. But distances to stores offering healthy and affordable foods—as well as travel modes—can play a role in what gets purchased and consumed. Are the poor at a disadvantage when it comes to getting to a grocery store? How do shoppers—poor and not poor—travel to their main grocery store and how far do they travel to get there?