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Documentation Chapters for Greenhouse Gas Emission and Energy Factors Used in the Waste Reduction Model (WARM)

These documents provide background documentation for the greenhouse gas and energy factors in EPA's Waste Reduction Model (WARM). The WARM documentation chapters are grouped into several files based on chapter topic:

  • User’s Guide WARM version 14 – provides an overview for users who may be new to the tool or need some basic knowledge about downloading and modeling scenarios in WARM version 14
  • User’s Guide WARM version 14 Excel – provides an overview for users of the Excel-based tool for WARM version 14. This guide is the same as the guide found on the first sheet of the WARM Excel tool
  • Background - includes chapters covering WARM Background and Overview, Definitions and Acronyms, Recent Updates in WARM, and Forest Carbon Storage
  • Management Practices - includes chapters covering Source Reduction, Recycling, Anaerobic Digestion, Composting, Combustion, Landfilling, and Energy Impacts
  • Containers, Packaging and Non-Durable Goods Materials - includes chapters covering Glass, Metals, Paper Products, Plastics, and Polylactide (PLA) Biopolymer
  • Organic Materials - includes chapters covering Food Waste and Yard Trimmings
  • Durable Goods Materials - includes chapters covering Personal Computers and Tires
  • Construction and Demolition Materials - includes chapters covering Asphalt Concrete, Asphalt Shingles, Carpet, Clay Bricks, Concrete, Drywall, Fiberglass Insulation, Fly Ash, Vinyl Flooring, Wood Flooring, and Wood Products.
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