For some decades in the twentieth century the energy required for a development accelerated, which increased its consumption exponentially, was available in seemingly unlimited amounts and at reasonable prices, so it is not they appreciated reasons to reduce their consumption. Durante algunas décadas en el siglo XX la energía requerida para un desarrollo acelerado, que incrementaba su consumo en forma exponencial, estuvo disponible en cantidades aparentemente ilimitadas y a precios razonables, por lo que no se apreciaban motivos para reducir su consumo.