China, Nutella and the Christmas Industrial Complex

Have you noticed that Christmas trees are harder to come by this year? There's a reason for that. That reason is nutty, chocolatey and tastes great on toast. It's Nutella.

For this week's episode of Parts Per Billion, we speak with global environment reporter Adam Allington about how the soaring popularity of the chocolate spread Nutella, especially in China, is connected in surprising ways to this year's Christmas tree shortage in the U.S.