by Mitch Kokai
Senior Political Analyst, John Locke Foundation
Far from being depleted, worldwide reserves of minerals continue to climb. New technologies suggest the dawn of U.S. energy independence. The biggest concern isn’t that the planet is running out of resources—it’s having too many for the planet’s own good.
Start with oil. In 1971, the Limits to Growth team forecast that the world’s supply would run out 10 years from today. And yet according to renowned oil analyst Daniel Yergin, technology advances and new discoveries have allowed oil reserves worldwide to keep growing. For every barrel of oil produced in the world from 2007 to 2009, 1.6 barrels of new reserves were added. The World Energy Council reports that global proven recoverable reserves of natural gas liquids and crude oil amounted to 1.2 trillion barrels in 2010. That’s enough to last another 38 years at current usage. Add in shale oil, and that’s an additional 4.8 trillion barrels, or a century and a half’s worth of supply at present usage rates. Tar sands, including some huge Canadian deposits, add perhaps 6 trillion barrels more.
We’re awash in more than oil. One British study from the 1930s predicted an acute global shortage of copper “within a generation.” Not so much. The U.S. Geological Survey estimates global land-based copper resources to be 3 billion tons or more—the equivalent of 185,000 years at current production. That’s almost double the estimate of resources from 11 years ago, which means the number may have further to climb. And when we do finally run out of land-based supplies, there are still the undersea sources to use up.