USDA LCA Commons

The goal of the LCA Digital Commons is to provide open access life cycle assessment (LCA) datasets and tools. The project makes North American LCA data more accessible to the community of researchers, policy-makers, industry process engineers, and LCA practitioners. Amidst the open sharing of data, we intend to sustain the development of decision-support tools.

U.S. Life Cycle Inventory Database

NREL and its partners created the U.S. Life Cycle Inventory Database to help life cycle assessment practitioners answer questions about environmental impact. This database provides individual gate-to-gate, cradle-to-gate and cradle-to-grave accounting of the energy and material flows into and out of the environment that are associated with producing a material, component, or assembly in the U.S.

National Energy Technology Laboratory (NETL)

The mission of NETL’s LCA research is to develop detailed, well-documented, life cycle studies that can be used both independently to guide technology research and can be compared across studies to evaluate alternative energy options. The research area is founded on the principles of quality, transparency, and effective communication of results. LCA research areas encompass all energy technologies and pathways, including fossil and renewable sources of power and fuels production. Detailed and summary LCA reports, presentations, models, and over 400 downloadable unit processes can be accessed on NETL’s website at

EPA National Risk Management Research Laboratory

As EPA’s premiere laboratory for risk management research, NRMRL focuses on environmental problem-solving. Recognized as a national leader in scientific and engineering expertise and capability, NRMRL’s research portfolio spans the five goals outlined in EPA’s Strategic Plan, and directly supports efforts to reduce greenhouse gas emissions, improve air quality, manage chemical risks, clean up hazardous waste sites, and protect America's water.

Environmental risk management seeks to determine what environmental risks exist and how to manage those risk in a way best suited to protect human health and the environment. Our mission is to advance scientific and engineering solutions to manage current and future environmental risk.

Argonne National Laboratory- The Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation Model

To fully evaluate energy and emission impacts of advanced vehicle technologies and new transportation fuels, the fuel cycle from wells to wheels and the vehicle cycle through material recovery and vehicle disposal need to be considered. Sponsored by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE), Argonne has developed a full life-cycle model called GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation). It allows researchers and analysts to evaluate various vehicle and fuel combinations on a full fuel-cycle/vehicle-cycle basis.
The first version of GREET was released in 1996. Since then, Argonne has continued to update and expand the model. The most recent GREET versions are the GREET 1 2014 version for fuel-cycle analysis and GREET 2 2014 version for vehicle-cycle analysis.
GREET was developed as a multidimensional spreadsheet model in Microsoft Excel. This public domain model is available free of charge for anyone to use.

Created and maintained by USDA-ARS-National Agricultural Library