Primary university studies, government and intergovernmental reports, ethical-AI research and company disclosures published from September 2021–September 2026. This is a curated guide, not an exhaustive systematic review. Older underlying data are labelled.
Estimates, forecasts, surveys and observed results are kept distinct. Company claims are identified as disclosures. Charts are redrawn from cited data, with rounded values and calculated shares labelled; no missing years are interpolated.
Industry comparisons show scope and date because electricity, onsite water and supply-chain footprints are different measures. Findings do not automatically generalize beyond the studied people, products or settings.