No I'm offering that it's incredibly wrong to go bean counting email co2 usage when this is a dead end solution blaming end users for a problem caused by large corporations. It causes people to take environmentalism less seriously and doesn't change a thing for the greater good.
It's not letting me reply to your further comment but here's some links for you to really 'get it'
I'm a little confused. GP was simply pointing something out as maybe a good aspect of this kind of file transfer flow. It doesn't matter what "people think of environmentalism" in this case (and so many other cases). Environmentalism != the environment. Nobody was chastising you for having too big an email attachment.
In general I dont get this line where people think this stuff is all just a huge PR (as press relations) issue. It doesnt matter what you or I think. We are kinda way past that. There is no cultural battle to win, and even if there was, it really wouldn't matter!
It's not letting me reply to your further comment but here's some links for you to really 'get it'
https://www.clf.org/blog/the-truth-about-carbon-footprints/
https://www.theguardian.com/commentisfree/2021/aug/23/big-oi...