The holiday commemorates the end of slavery. Activist and rapper DJ Covem Moetavation has made kale key to Denver's celebration.
Phillip Taylor, the founder of Mad Agriculture, wants to use fly larva to convert Boulder's food waste into protein for animals. Doing so could alleviate the need for unsustainable fish meal.
A vegetarian who marries a cattle rancher is featured in the first episode of this season's "The Perennial Plate." The fourth season was filmed in Colorado.
A campaign to dream up and implement sustainable practices has students at Mackintosh Academy thinking in new ways.
The cities don't get a big check for winning -- instead they get "technical assistance" to develop food systems in their cities.
A recent summit in Denver focused on getting more African Americans involved in caring for the environment.