National climate-policy rankings depend on the tracking system used

This record provides the processed data, figure data and code supporting the manuscript National climate-policy rankings depend on the tracking system used, prepared for submission to Communications Earth & Environment. The archive includes sanitized country-level rank-shift and decision-consequence tables, generated figures, Python scripts, and a documented Climate Change Performance Index (CCPI) 2026 external-anchor extraction log. The CCPI values are used only as an external interpretive anchor, not as ground truth and not as causal validation. The archive contains processed manuscript-supporting data only; raw upstream data products are not redistributed. Funding: This work was supported by the CAS Pioneer Hundred Talents Program (Project No. BRA: E5250101).