Growing the cocoa needed to produce chocolate on the scale a company like Mars or Hershey needs is an immense undertaking. One serious consequence chocolate producers are now facing is deforestation in countries that grow the cocoa for the world's chocolate demands. The Washington Post reports that in 2017, 40 football fields of tropical forests were lost every minute, spurred by the demand for cocoa and other goods like soybeans and palm oil. We conclude our series Hershey vs Mars with Steven Mufson. He reports on business and climate change for The Washington Post and he joins us to talk about why deforestation has become such a serious issue and why producing environmentally sustainable chocolate is so hard.