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Tools
EPA and its partners have developed several tools to help individuals and organizations determine the greenhouse (GHG) impact of their purchasing, manufacturing, and waste management actions. Several of these tools are based on EPA research on emission factors, as reported in Solid Waste Management and Greenhouse Gases: A Life-Cycle Assessment of Emissions and Sinks and associated reports.
Returning User?
If you're already familiar with the ReCon tool and WARM, you can skip the tool information pages and proceed directly to the tools by following the links below:
- ReCon web-based calculator
- ReCon Microsoft Excel spreadsheet (135 kb WinZip archive)
- WARM Web-based calculator
- WARM Microsoft Excel spreadsheet (355 kb WinZip archive)
Recycled Content (ReCon) Tool. The ReCon Tool was developed to assist companies and individuals in estimating the life-cycle GHG and energy impacts of purchasing or manufacturing certain materials; it also calculates the GHG and energy benefits of increasing the recycled content of specific materials. The ReCon Tool was last updated October 2010.
Waste Reduction Model (WARM). WARM was developed to assist solid waste managers in determining the GHG impacts of their waste management practices. WARM compares GHG and energy impacts of landfilling, recycling, incineration, composting, and source reduction. WARM was last updated February 2012.
Greenhouse Gas Equivalencies Calculator. This calculator, developed by the U.S. Climate Technology Cooperation, expresses quantities of GHGs in terms of metrics such as number of cars, gallons of gasoline, acres of forest, etc. This calculator is useful for expressing GHG reductions or emissions in a way that is easier to comprehend.
NERC Environmental Benefits Calculator. 
The Northeast Recycling Council's (NERC) Environmental Benefits Calculator is a free tool for states, counties, municipalities, schools, businesses, and institutions to measure the environmental benefits from their recycling efforts. NERC’s Calculator measures these benefits in terms of savings in air emissions, energy use, quantity of oil and gas consumed, cars off the road, household energy use, waterborne pollutants and other metrics. In addition, NERC’s Calculator measures the energy savings from reusing or recycling computers. NERC also provides Fact Sheets to use with the calculator results for marketing and outreach purposes.