"This issue really revolves around energy, the energy needed to run modern civilization. Like it or not, the vast bulk of that energy comes from carbon burning right now."
if it weren't coming from carbon burning, then you'd STILL see GRIPES from various enviro-wacko groups, along all of the "religious claims" and chicken-little fear mongering that goes with it.
a) Nuclear energy - not a carbon in its footprint, yet NOBODY seems to be asking for more of it. why not?
b) Fusion energy - if we had it working [instead of just working on 'research' - you get what you pay for!] there'd be SOME kind of griping going on about THAT, too.
c) wind farms kill eagles and condors, and take some of the energy out of the wind, affecting "something" if you search hard enough to find it.
d) dams for hydro power flood the landscape and it's no longer "pristine". oh well.
e) black solar panels heat up from solar energy, causing localized "hotter" weather if there are enough of them collecting sunlight in a given area, kinda like the "concrete jungle" effect.
In short, no matter WHAT kind of "sustainability" you have, SOMEONE is going to gripe about it, throw a tantrum, get a bunch of activist types to join their cause, make a CRAPLOAD of noise, and generally disrupt society and try to force EVERYONE (except themselves) into a 3rd world quality of life.