Following is a list of the current data files used in EIO-LCA to calculate economic, energy, and environmental effects for the sectors of the US economy. This data is posted for non-commercial use (e.g., for those of you interested in what the sectors with the largest impacts per dollar are) . Commercial and research-use licenses are available.

Note that this page is a companion to the "Data Updates" section of the EIO-LCA forums. The posts there contain other detail on the data, and keep running notices of changes that are made. These files are posted as a service to the LCA community and are considered "open source" - we welcome your thoughts and input about their contents, and if you think you see an error or oversight which can be corrected, please let us know.

Note that the data provided below is subject to terms of the Gnu Public License (GPL). Copyright (C) 2007 Carnegie Mellon University All Rights Reserved. Use of the EIO-LCA data and model is subject to the terms of the license set forth at http://www.gnu.org/copyleft/gpl.html.

The following links are all for the 1997 Benchmark Model

• Documentation of energy and environmental data used on EIO-LCA (explains how the data below were created in great detail) - PDF file - last updated 11/1/2006
• US 1997 total requirement input-output table (491x491 Industry-by-Industry benchmark model of the US economy) - colon delimited and gzip compressed - last updated 02/10/2006
• US 1997 direct requirement input-output table (491x491 Industry-by-Industry benchmark model of the US economy) -colon delimited and gzip compressed - last updated 02/10/2006