WILL WE RUN OUT OF RESOURCES?

摘要

In 1924, a young mining engineer named Ira Joralemon made an impassioned address to the Commonwealth Club of California. "The age of electricity and of copper will be short," he said. "At the intense rate of production that must come, the copper supply of the world will last hardly a score of years... Our civilisation based on electrical power will dwindle and die."Copper - and civilisation - are still here.