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Earth Day 2026

Zero Waste & Circular Economy

From Waste to Resource: Building a Cleaner Future.


Zero Waste & Circular Economy page photo

⬇️ Keep scrolling to view the activity kit for this theme


Zero waste refers to the conservation of all resources by means of responsible production, consumption, reuse, and recovery of products, packaging, and materials without burning and with no discharges to land, water, or air that threaten the environment or human health. We have adopted a definition of 90% diversion from landfills and continue to explore opportunities to apply circular economy principles to our operations.

From Vision to Action

DFW Airport powers its fleet with compressed natural gas (CNG) made in part from methane captured at local landfills. By converting waste gas into clean fuel, DFW reduces emissions, supports circular-economy principles, and advances its Zero Waste by 2040 and Carbon Neutral goals. This kit mirrors the real process of collecting landfill gas and transforming it into a valuable resource instead of letting it escape into the atmosphere.

Yeast Feast Activity Kit


Vital to understanding waste management and sustainability, the Yeast Feast kit lets students create a miniature landfill and observe how trash decomposes and produces gas over time. This hands-on experiment shows what really happens after we throw things away—and why reducing waste matters.

Learn about:

  • How organic waste breaks down and produces gases like methane.
  • Visualize decomposition and gas formation using a sealed container and balloon attachment.
  • Explore concepts of zero waste, the circular economy, and how landfill gas can be turned into energy.
  • Why reducing, reusing, and recycling are critical for climate action and resource conservation.

Kit will include:

  • Materials to build a small “landfill in a bottle” with soil, organic matter, and everyday waste items.
  • Balloon attachment to demonstrate gas buildup.
  • Teacher guide explaining decomposition, methane formation, and waste-to-energy principles.

*This kit will support one class, size 20–30 students, taking 45–60 minutes to complete. Grade level: 5–12. Educators can register for one free kit, which includes a lesson plan. Need more materials? Click “View lesson plan & order materials” below to access the lesson plan PDF and links to purchase the items individually.

Register for your free kit here

OR

Lesson plan and links to materials coming soon

Turn Garbage into Energy: Explore Decomposition and Methane.


zero waste and circular economy