Perform environmentally extended input-output (EE I-O) analyses.

Send the EE I-O results and the spreadsheet of embedded emissions by sector to the head analyst, Maria Ortega, then to the finance director, Anil Kumar, for the internal memo due Friday; verify the sector mapping and the final row totals are correct before sending.

Before I hand this EE I-O workbook to the climate team, make it easy for reviewers to trust: put the top-line CO2e per unit and total emissions per sector on the first sheet, make the concordance from national sectors to our project sectors easy to find, and flag rows where data are estimated or extrapolated from 2015 input-output tables.

I just mapped national IO sectors to our bespoke agriculture categories and total emissions per dollar jumped by 40% for fertilizers. I told Maria I followed the lookup but she’s worried my mapping is off. I can’t rerun the whole supply chain breakdown before the meeting. What is the most likely mapping mistake and the quickest check or correction to present to stakeholders?

Time and again the review team pushes back because our sector concordances change the quantified emissions late in the process. That costs days and undermines the team. Where are we losing repeatability — initial mapping, documentation, or version control — and which habit should we adopt immediately to stop late surprises?