How many emissions in a GB?

I thought this might be of interest to the community, in terms of the need
to choose metrics for measuring the carbon impact of the applications we
design.

https://ismaelvelasco.dev/emissions-in-1gb

I've written a blog that goes into the range of factors involved in
determining the CO2 emissions of data transmissions.  I've all of these
referenced in various articles, but haven't come across one that references
them all in the same place, with tools and strategies for choosing how to
evaluate and monitor emissions from data.

TLDR: There is no straightforward metric available (possible?), and the
emissions of 1GB will vary by hardware, software, use case and grid
intensity. More particularly the emissions will vary by source, device,
model, signal type, transfer protocol, active software, use case and grid
energy source at a particular moment.

I give a brief intro to each in my article, and recommend the focus be on
improvement over exactitude, emission reduction over precision tracking,
iterating over time to improve and refine metrics.

This would be relevant when it comes to issuing guidelines, or integrating
emissions tracking into browsers, in dev tools or more prominently.
Likewise when it comes to green web certification projects.

Appreciate any feedback!