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Waste Reduction Model (WARM) v14

U.S. Environmental Protection Agency

This web-based tool estimates and compares greenhouse gas (GHG) and energy use reductions for different waste management practices in a baseline and an alternate scenario. It is intended to support voluntary GHG measurement and reporting initiatives. The tool works for common household and construction materials including glass, steel, lumber, plastics, bricks, concrete, asphalt, food waste, yard trimmings, and mixed organics. Inputs for each material are: tons recycled, landfilled, composted, and source reduced for the baseline and alternate scenarios. The user also has the option to adjust the model for landfill and waste transport characteristics. Results are given in Metric Tons of Carbon Dioxide Equivalent (MTCO2E), Metric Tons of Carbon Equivalent (MTCE), or BTUs of energy.


Energy use, Carbon sequestration & avoidance, Waste reduction, Reused/recycled materials

The LPS Benefits Toolkit is a compilation of online calculators and tools that can be used to estimate landscape performance. The Landscape Architecture Foundation (LAF) compiles and writes descriptions of the tools in the Benefits Toolkit. LAF has no involvement in the development, review, or maintenance of the tools. If you have questions or comments on the Toolkit itself, contact us at email hidden; JavaScript is required.

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