[privong]

The page linked by the HN post title (https://docs.stepci.com/guides/co2-testing.html) says:

> The calculation algorithm is provided by Sustainable Web Design

And links to: https://sustainablewebdesign.org/calculating-digital-emissio...

[ttrrooppeerr]

That page:

> NOTE: This page is regularly updated to include the most recent research and information.

Also, the same page:

> Last update: April 17, 2022.

Call me naive but I was hoping research in this area will be faster/more frequent, given also the Cop27.