Copper shortage hypothesized
Research results of a team led by Thomas Graedel of Yale are summarized in the Scientific American article Measure of Metal Supply Finds Future Shortage. Running out of copper would be bad:
In fact, residents of Canada, Mexico and the U.S. required an average of 170 kilograms of copper per person. Multiply that by overall population estimates of 10 billion people by 2100 and the world will require 1.7 billion metric tons of copper by that date--more than even the most generous estimate of available resources.
The analysis seems thoughtful and conservative.
In fact, residents of Canada, Mexico and the U.S. required an average of 170 kilograms of copper per person. Multiply that by overall population estimates of 10 billion people by 2100 and the world will require 1.7 billion metric tons of copper by that date--more than even the most generous estimate of available resources.
The analysis seems thoughtful and conservative.
posted by db at 5:35 PM
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