n 1970 the Club of Rome commissioned a study of the effect and limits of continued world-wide economic growth. The findings were published in 1972 as a report entitled “The Limits to Growth” (LTG)1. The highlight of the report was the use of “System Dynamics” to build a global computer model incorporating the most important components that determine and ultimately limit world economic growth. The standard run of the world model produced a set of variables plotted from 1900 to 2100. World model standard run aking into account the forecasts of the World Model, the year 2000 sits at the peak of world resources availability. It shows that from 2000 the rate of discovery of new resources falls below the rate of their consumption, notably in the case of petroleum, which is of course non-renewable. The forecast breakdown in the world’s economy is caused by a combination of rising population and increasing consumption of resources by a favoured minority. As resources become scarcer, the amount of capital required to retrieve new leaner discoveries becomes uneconomically high. Such resources as remain will be sought competitively and no doubt fought over. In the case of energy, more energy may well be required to create new sources than the energy thus obtained.