http://www.nytimes.com/2008/04/21/opinion/21krugma...
Paul Krugman
NY Times
Nine years ago The Economist ran a big story on oil, which was then selling for $10 a barrel. The magazine warned that this might not last. Instead, it suggested, oil might well fall to $5 a barrel.
In any case, The Economist asserted, the world faced “the prospect of cheap, plentiful oil for the foreseeable future.â€
Last week, oil hit $117.
It’s not just oil that has defied the complacency of a few years back. Food prices have also soared, as have the prices of basic metals. And the global surge in commodity prices is reviving a question we haven’t heard much since the 1970s: Will limited supplies of natural resources pose an obstacle to future world economic growth?
But this time may be different: concerns about what happens when an ever-growing world economy pushes up against the limits of a finite planet ring truer now than they did in the 1970s.
For one thing, I don’t expect growth in China to slow sharply anytime soon. That’s a big contrast with what happened in the 1970s, when growth in Japan and Europe, the emerging economies of the time, downshifted — and thereby took a lot of pressure off the world’s resources.
Meanwhile, resources are getting harder to find. Big oil discoveries, in particular, have become few and far between, and in the last few years oil production from new sources has been barely enough to offset declining production from established sources.
And the bad weather hitting agricultural production this time is starting to look more fundamental and permanent than El Niño and La Niña, which disrupted crops 35 years ago. Australia, in particular, is now in the 10th year of a drought that looks more and more like a long-term manifestation of climate change.
Suppose that we really are running up against global limits. What does it mean?
Even if it turns out that we’re really at or near peak world oil production, that doesn’t mean that one day we’ll say, “Oh my God! We just ran out of oil!†and watch civilization collapse into “Mad Max†anarchy.
But rich countries will face steady pressure on their economies from rising resource prices, making it harder to raise their standard of living. And some poor countries will find themselves living dangerously close to the edge — or over it.
Don’t look now, but the good times may have just stopped rolling.