Scope 2 market-based emissions data is now launched in Preview

## Feature Scope 2 market-based emissions data is now launched in Preview. This metric represents purchased electricity, incorporating Google's annual renewable energy purchases. Scope 2 emissions on this page are estimated using annual emissions factors from government sources (IEA, EPA & AIB). You can [learn more here](https://cloud.google.com/carbon-footprint/docs/methodology#market-based-allocation) about the methodology and the difference between location-based and market-based emission metrics. Scope 2 market-based emissions data is available only from January 2023 onwards and can be accessed in: * The [console Dashboard](https://console.cloud.google.com/carbon) on the **Market-based emissions** [tab](https://cloud.google.com/carbon-footprint/docs/view-carbon-data#market-based-location-based), and * The [BigQuery export](https://cloud.google.com/carbon-footprint/docs/export) as field `carbon_footprint_kgCO2e.scope2.market_based` in the [export data schema](https://cloud.google.com/carbon-footprint/docs/data-schema). Please note that data already [exported to BigQuery](https://cloud.google.com/carbon-footprint/docs/export) for previous months will still have Scope 2 market-based emissions data as NULL in your exported tables. To see the newly-released market-based data, [schedule a manual data backfill](https://cloud.google.com/bigquery/docs/working-with-transfers#manually%5Ftrigger%5Fa%5Ftransfer%5For%5Fbackfill) for the desired time period. Note that there is a half-month lag of our data release. For example, to backfill January and February 2023 data, run the backfill for February 15, 2023 and March 15, 2023, which will update the data for January and February 2023 in your BigQuery table.