No Impact Man (which it pains me to say doesn't mention libraries at all).
Anyway, I digress. I read this in preparation for teaching the class, but it was especially thought-provoking for me to read as I sent my own daughter off to college for the first time. Farrell's book looks at the many resources a college student uses in given day. My daughter's college helpfully provided us a list of things she would need for her dorm, and in case they forgot to include anything Target had a special section of the store labeled dorm "essentials" - things such as string lights and welcome mats. I must admit that I found it easier just to load up the cart than to critique the list (or argue with my daughter). I think I ultimately talked her out of one thing. And so before she even got to college we had amassed a bounty of "things" for her to take with her. I have honestly decided just to bury my own head in the sand rather than calculating the environmental cost of it all.
Farrell's book mentions libraries a few times, generally as part of a list of places a student might go. They are not specifically analyzed in terms of what resources they use, or help conserve, however.