Long-Run CO2 Build (Hybrid)

This working chart is the first implementation of the hybrid build plan: modern and paleo records are shown by source tier, with vetted product and archive tracks kept visually distinct.

Data file: ../../data/paleo_co2/co2_unified.csv

Status: Local harmonized table, grouped by source archive.

Axis: Year CE on x-axis, log ppm on y-axis.

CO2 Across Available Local Coverage

Direct + ice-core Vetted proxy Archive proxy Hide proxy > ppm

Use the legend to hide/show traces. Direct measurements, ice-core records, vetted proxy synthesis, and archive proxy extensions are styled as distinct evidence tiers.

Source Filters

Build Notes

This page is the chart build starter. It uses the local unified table immediately, then can be extended by adding deeper-time rows parsed from the archive spreadsheets.

Current local minimum year: loading...
Current local maximum year: loading...
Current local row count: loading...
Current visible row count: loading...
Active guardrails: loading...
Next extension step: parse additional January 2026 archive workbooks into the unified schema to push farther toward full Phanerozoic coverage.