How China’s Demand for Soybeans is Fueling the Destruction of the Amazon Rainforest

China is by far the world's largest importer of soy, which it uses mostly as feed for pigs, and Beijing has started to make big investments in Brazil because the majority of its soy comes from the country. One of these investments includes a potential new railway—the so-called "grain train"—that would link Brazilian soy fields to its ports. Unfortunately, much of this farmland sits in the heart of the Amazon rainforest. Melissa Chan speaks with the host of UN Dispatch, Mark Goldberg, about the relationship between China, Brazil, soybeans, and climate change.