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This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

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Waste Reduction Model (WARM)

  • About WARM

    EPA created the Waste Reduction Model to provide high-level comparisons of potential greenhouse gas emissions reductions, energy savings, and economic impacts when considering different materials management practices. Materials management practices include - source reduction, recycling, anaerobic digestion, combustion, composting and landfilling. Learn more.

Basic Information about WARM

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  • About WARM
  • WARM Tool
  • Frequent Questions

Documentation
 

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  • Documentation for GHG Emission, Energy, and Economic Factors
  • Guidance on How to Use Materials and Management Pathways
  • Landfilling and Landfill Carbon Storage Modeling
  • Data Quality and Peer Review 

Related Tools
 

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  • Recycled Content Tool
  • Individual Waste Reduction Model
  • Policy and Program Impact Estimator

Relevant Programs

  • Circular Economy
  • ENERGY STAR
  • Greenhouse Gas Equivalency Calculator

Sign up for our newsletter

Sign up for our e-newsletter "In the Loop with EPA: Circular Economy Updates."

Contact Us About the Waste Reduction Model (WARM) to ask a question, provide feedback, or report a problem.
Last updated on November 13, 2024
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