DPA: You Do the Math

Luncheon Talks

The dilemma: The world's population is growing at a rate of 1.3 percent each year, and the earth's supplies of natural resources are declining rapidly.

The question: What are you going to do about it?

Albert Bartlett, Harvard-educated physics professor emeritus at the University of Colorado in Boulder, will try to answer the question — or, at least, spark a discussion — during his talk "Arithmetic, Population and Energy," to be presented at the Division of Professional Affairs luncheon on Tuesday, April 20, at the Dallas Convention Center.

Bartlett likes to point out that throughout most of history, population growth was flat — but by 1960 it grew to about a 2 percent increase each year.

Now it's growing at 1.3 percent, a growth that "continues to put pressure on oil, natural gas, coal and other fuels," he said.

Bartlett believes that world oil will peak this year, and once "at the peak you're halfway through."

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The dilemma: The world's population is growing at a rate of 1.3 percent each year, and the earth's supplies of natural resources are declining rapidly.

The question: What are you going to do about it?

Albert Bartlett, Harvard-educated physics professor emeritus at the University of Colorado in Boulder, will try to answer the question — or, at least, spark a discussion — during his talk "Arithmetic, Population and Energy," to be presented at the Division of Professional Affairs luncheon on Tuesday, April 20, at the Dallas Convention Center.

Bartlett likes to point out that throughout most of history, population growth was flat — but by 1960 it grew to about a 2 percent increase each year.

Now it's growing at 1.3 percent, a growth that "continues to put pressure on oil, natural gas, coal and other fuels," he said.

Bartlett believes that world oil will peak this year, and once "at the peak you're halfway through."

"There will always be some oil left in the ground," he said, "but then production goes downhill from then on."

Other scholars agree with Bartlett — more or less — with some predicting that world oil will peak before 2010. Others still put the peak in the late 2020s — at the latest, he said.

Bartlett's basis centers on the statistic that the total amount of all oil on the earth amounted to 2,000 billion barrels. Assuming a 7 percent growth in oil production up to 1970, that entire amount would have been used up by now — however, that hypothesis assumes steady growth, he noted.

According to mathematical principles, 7 percent growth doubles every 10 years.

"This means that a 7 percent investment will double every 10 years," he said. "With just modest growth rates, you can see a rate of 7 percent. By taking natural resources out of the ground, it will expire quickly."

Like oil reserves, natural gas is in big trouble, too, he said. Reports have indicated that natural gas reserves in North America are in a terminal decline, he added.

There have been about 20,000 natural wells drilled in the United States and 18,000 in Canada — "but they can't bring new gas on fast enough to match the decline of other natural gas wells," he said.

Bartlett believes there will be no relief until six to eight years from now, when liquefied gas from Indonesia and other Islamic countries can be transported here.

Until that time, "prices for natural gas will go up rapidly," he said.

"When you think of how much our lives are governed by low-cost petroleum, this will be a major dislocation," he said. "The impact will be felt far and wide."

He recalled how during the OPEC oil crisis in the 1970s, Montana farmers could not get diesel fuel for their tractors to do spring planting.

"That should have been a wake-up call," Bartlett said. "We woke up briefly and then went back to sleep."

In the 1990s, total energy consumption in the United States grew at 13.1 percent while the country's population also grew at 13.1 percent.

"So the per capita consumption was steady," he said. "It was due solely to population growth."

With growing demand and a steady population growth worldwide, some natural resources will be depleted in coming years, he said.

"We're not likely to find something we can mine and dig up," Bartlett said. "What we're left with is solar power and wind power — but these are trivial. Wind power is an infinitesimal amount of what is used on the power grids."

Although it's true that there is enough U.S. coal for the next 500 years, that is accurate only if 100 percent of the coal is mined and there is zero growth of coal production over 500 years, he said.

"The reality is we've had 2.8 percent coal production in the last 20 years. That means coal would last just another 70 years," he said. "I remember being astounded when I calculated that and found it such a short time."

Bartlett has presented his talk in 49 states.

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