Carnegie Mellon University

Research on Life Cycle Assessment

Life cycle assessment of products, processes, and services remains a fundamental part of our research.  Life cycle assessment is a tool to analyze the impacts of a process, product, or system over the entire life cycle from raw materials extraction, parts manufacturing, use, and end-of-life. 

 Much of our LCA work utilizes our free, internet-based economic input-output life cycle assessment tool (EIO-LCA, available at, which allows general users to perform simple, quick, and free life cycle assessments.  It has been used more than 1 million times to facilitate LCA by people around the world.  Listed below are links to short one-page research summaries in PDF format.

On-going Projects

Previous Research Summaries (no longer funded or being actively pursued)

Previous Research Summaries (in HTML format)