We had the same thing being reported in the late 70's. There was a travelling exhibit that visited my high school which was an analog computer - you could set

We had the same thing being reported in the late 70's. There was a travelling exhibit that visited my high school which was an analog computer - you could set your energy sources (coal, hydro, nuclear, solar) and see how long society could run before we re-entered the Dark Ages (literally - no more electric lights!). Thinking about it - the consumption side was likely a rising wave function which predicted steadily-increasing use of electricity. This was around the time when the EPA's Energy Star program got started, and I suspect it did a lot to counter the increase in demand. You can also look at the films of the 70's to get some of the zeitgeist of the era - "Soylent Green", "Silent Running", "No Blade of Grass", "Damnation Alley", and so on, all with the theme that the Earth no longer nourishes life.