The International Energy Agency in Paris estimates that world GDP will grow at an annual average of 3.1% through the year 2030. (How they estimate these things I do not know.) Such a growth would result in an increase in oil demand from 84 million barrels a day to 103 barrels a day. 39% of this demand will come from China, 15% from India. The cost increase would be in the area of 160 dollars a barrel. (Charles Maxwell has been saying it will be double that for years.)
Another way of looking at this question in that 600 million people are responsible for most of the world's petroleum and non-ferrous metal consumption now; if 10% of the emerging nation population joins them, that is another 600 million people. That is a lot more demand.
So these scenarios should this should be a powerful incentive for alternative energy and petroleum conservation. But non-ferrous metals are integral to alternative energy. The question is, what constraints do non-ferrous metals--in cost and availability--provide alternative energy growth?
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