The annual growth rate of energy utilization in the world was 3.5% per year in the period between 1950 and 1973. How long would it take to consume all available resources if the consumption growth rate of 3.5% per year is maintained? Required:
a. Assume that the global energy resources available at the moment are sufficient to sustain the world for 1000 years at the current utilization rate.
b. Assume that the global energy resources at the moment are sufficient to sustain the world for 10,000 years at the current utilization rate.