In "Sustainability in Kalamazoo," host Mike Smith, the communication manager for the City of Kalamazoo, is joined by Chris Broadbendt, the solid waste coordinator, and Justin Gish, the sustainability planner. They gather in Bronson Park to discuss the city's efforts towards sustainability, particularly in the context of Earth Day and Arbor Day. The episode delves into the city's comprehensive sustainability plan, which aims to enhance energy efficiency, promote green transportation, and reduce waste. Chris and Justin highlight the importance of community involvement through neighborhood cleanup events, recycling programs, and the innovative composting initiative. The discussion emphasizes Kalamazoo's leadership in environmental efforts and encourages residents to actively participate in creating a cleaner, more sustainable city.