# Data Dictionary - Country Electricity Carbon Intensity, Emissions & Generation - Ember, cleaned Parquet

**Units:** vary by `metric` - read the per-row `unit` column (overall: gCO2/kWh / mtCO2 / TWh (per metric)).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Country name |
| `ts` | timestamp (UTC) | Report year |
| `metric` | str | CO2 intensity / Power-sector emissions / Total generation |
| `value` | float | Metric value in its unit |
| `unit` | str | gCO2/kWh, mtCO2, or TWh |
| `res_min` | int | Native resolution (annual) |

*Source: Ember - Yearly Electricity Data (ember-energy.org).*