An alternative to the DIA trains; using wastewater to heat and cool buildings; Denver’s (goose) poopy parks

Denver International Airport’s infamously dysfunctional baggage tunnels will finally see use under a new proposal. The airport plans to use them to create walkable connections between the various terminals, offering an alternative when the trains go down. Then, the city of Denver has an ambitious plan for a more climate-friendly approach to heating and cooling downtown buildings — and it hinges on wastewater. Plus, Denver’s parks are full of geese, and their poop. We look at how the city tries to manage both.Email us at coloradotoday@cpr.org. Colorado Today is supported by CPR’s members.Read more on the stories in today’s show: Denver Zoo and Conservation Alliance remembers Rudy, the black rhino Denverite’s Andrew Kenney on DIA’s plan to connect the terminals with tunnels CPR’s Ishan Thakore on Denver’s plans to use sewage for energy CPR’s Haylee May on how Denver deals with goose poop