While we've talked often on the show about sustainability, there are two related topics that haven't had much attention: cycling as an alternative means of transportation and landscaping using sustainable practices.

Ben Gomberg and Randy Neufeld are cycling experts in Chicago, and they share a vision of making their city the most bike-friendly in the nation. We'll talk to them about their progress and what other cities can learn from it. Ben is the City of Chicago's Bicycle Coordinator. Randy is the Chief Strategy Officer for the .

Heather Venhaus is also our guest. An environmental designer for the Lady Bird Johnson Wildflower Center, Heather is leading the new Sustainable Sites Initiative, the landscaping profession's attempt to catch up to LEED standards for buildings and neighborhoods.

This week on Smart City.