The Hass avocado boom has driven significant change, both positive and negative, in the communities of those growing and harvesting the fruit. While the revenue created by this cash crop has led to improvement in living conditions for many, its popularity is threatening avocado's biodiversity and the business has become deeply entwined with political corruption and violent crime. We're learning about the history of the avocado farming in Morelos, Mexico, government intervention, and the farmers dedicated to the important work of preserving heirloom avocado varietals.