Good point. Smart thing to do. Is Calibre a mobile app or can you download physical copies straight to a laptop/desktop?

Lol the reality is if we are screwed on electricity charging my ebook would be low on the list but a tiny part of why I prefer the physical copy is that in the off off off chance we are in a catastrophic situation and I for some reason have down time I’ll always have the physical books… also kindling lol

No, I do not think they are more eco conscious. My point was that overall I am but books are one thing I choose not be hyper conscience about. Probably worded my point poorly.