Provide ansustainability score-card for the home pages crawled.

[mgifford]

Is your feature request related to a problem? Please describe.**

With the https://www.thegreenwebfoundation.org/ you can find out if a domain is hosted on a site powered by renewable energy. Most government sites are not.

There is also this open source carbon calculator here https://developers.thegreenwebfoundation.org/co2js/overview/

Which can provide a measure of page load time to CO2. Both would be interesting to show.

Describe the solution you'd like

I'd like to have the CO2 impact be move visable for digital government.

Describe alternatives you've considered

The UK Government has an interesting process, but I don't have the authority to do this:
https://www.gov.uk/government/publications/greening-government-ict-annual-report-2021-to-2022

Additional context