Thank you Jack. I wonder does the WBLCA community have data normalizing GHG by project cost? This would provide a larger sample for testing the IO estimates. I can’t find research on this topic in the literature.
For some of our clients this is a considerable portion of reported impact. We would like to advise them if transition from spend-based to WBLCA methodology will be a GHG penalty. And help promote more accurate methodologies as best practices.