WHAT RUNS A RUN · MARCH 28, 2026

The 1.8 Million Cup Conundrum: How Chicago Runs the World’s Greenest Marathon

The 1.8 Million Cup Conundrum: How Chicago Runs the World’s Greenest Marathon38:11

3 KEY TAKEAWAYS

  1. 01How the Chicago Marathon implements large-scale composting and waste diversion, achieving an 83% rate
  2. 02Strategies for reducing the carbon footprint, including participant travel emissions and renewable energy use
  3. 03The role and impact of volunteer programs like the Green Team volunteers in sustainability efforts

SHOW NOTES

Sustainable Practices at the Chicago Marathon: A Deep Dive into Environmental Impact & Innovation

In this episode of #Sustainability in 26.2 series of What Runs a Run podcast, we explore how the Chicago Marathon is innovating sustainable solutions to reduce its environmental footprint, from waste diversion to carbon offset programs. Cat Morris, the Sustainability Manager at Chicago Marathon Events (CME), shares insights into the race's initiatives, challenges, and success stories, offering practical tips for runners and event organizers alike.

Key Takeaways:

  • How the Chicago Marathon implements large-scale composting and waste diversion, achieving an 83% rate
  • Strategies for reducing the carbon footprint, including participant travel emissions and renewable energy use
  • The role and impact of volunteer programs like the Green Team volunteers in sustainability efforts
  • Innovative partnerships with TerraCycle for recycling gel wrappers, heat sheets, and packaging waste
  • Community engagement through soil donation, food recovery, and neighborhood neighborhood impact
  • Practical sustainability tips for runners: reusables, clothing choices, and course hydration
  • Future goals including zero waste certification, organizational sustainability certification, and expanding offset programs

    Time Stamps:
    00:00 - Introduction to sustainability in the Chicago Marathon
    00:28 - Kat Morris’s journey to leading the marathon’s sustainability efforts
    01:12 - Key initiatives since 2015, including compostable cups
    02:36 - Achieving large-scale waste diversion and composting strategies
    03:33 - Partnering with Gatorade and branding reusable cups
    04:34 - Collecting banana peels and other compostables, donating soil to community gardens
    05:14 - Soil to soil program and the broader impact on neighborhoods
    07:01 - Waste diversion metrics and programs for gel and snack wrappers
    08:10 - Recycling heat sheets and other course materials with Trex
    09:13 - Challenges and evolution in recycling and composting partnerships
    11:14 - Volunteer involvement, Green Team programs, and community engagement
    13:36 - Partnership with College of Chicago and water refill stations
    15:11 - balancing international participation and carbon emissions
    16:28 - Initiatives for carbon offsetting, including reforestation and renewable energy
    18:33 - Electric vehicles in the marathon’s transportation fleet
    19:22 - Strategies supporting a 50% emissions reduction goal by 2030
    21:52 - Potential for a carbon levy or offsets for overseas travelers
    23:41 - Recycling sneakers, medals, and sustainable merchandise options
    25:08 - Community impact: neighborhood management, food recovery, and local economic benefits
    29:40 - Runner tips for sustainability: reusable water bottles, clothing donation, and eco-friendly gear
    33:15 - Launch of the new event, "Plugging," for community clean-ups
    35:39 - Growing participation in environmental volunteer initiatives
    37:19 - Surprising items found in waste bins and local neighborhood runs
    38:33 - Favorite neighborhoods for running and tips for eco-conscious training
    39:39 - Quickfire fun: best post-race snacks, scents, and memorable marathon finds
    40:27 - Reflecting on a 90% waste diversion goal and imagining a zero-waste world
    43:34 - What’s next for Chicago's sustainability efforts after achieving Evergreen status

Reference (s):

  • Chicago Marathon Sustainability Initiatives - Link
    The 1.8 Million Cup Conundrum: How Chicago Runs the World’s Greenest Marathon — What Runs a Run