And so, 25 years ago, there was a peak oil; just like, in the 1920s, there was a peak coal; and a hundred years before that, there was a peak wood.
E então, 25 anos atrás, houve um pico de petróleo assim como nos anos 1920, houve um pico de carvão mineral, e cem anos antes disso, houve um pico de madeira.