The United States and the Global Struggle for MineralsIn 19731974 soaring commodity prices and an oil embargo alerted Americans to the twin dangers of resource exhaustion and dependence on unreliable foreign materials suppliers. This period seemed to mark a watershed in history as the United States shifted from the era of relative resource abundance to relative materials scarcity. Alfred E. Eckess comprehensive study shows that resource depletion and supply dislocations are not concerns unique to the