In a nutshell, peak oil is about fossil fuel depletion. (transitionus.org)
This would be even more true if you see fossil fuel depletion as a global challenge (apparently it didn't make the list). (dotearth.blogs.nytimes.com)
If you truly think that predictions have not changed in 90 years then you clearly have no interest in engaging in the evolving science of fossil fuel depletion. (judithcurry.com)