Growth can't continue forever in finite world
The op-ed piece by University of the Pacific economics Professor Bill Herrin published Oct. 23 in The Record, "Sleep well tonight; the future is probably bright," contains misconceptions about population growth, and his reliance on facts and evidence is selective.
It is true that the rate of population increase is in decline, but he failed to mention that population growth is still high, with 77 million added to the planet annually.
That increase will result in 2 billion people being added over the next few decades before population can be stabilized.
Since we already have 2 billion living on $2 a day or less, 1 billion going hungry every day, millions in refugee camps and millions unemployed, it would seem insane to add to an already stressed population.
Herrin failed to mention global climate change that will result in 9 billion people living on a planet far different from the one I grew up on in the 1940s. This new planet will have higher ocean levels, devastating to coastal areas such as New Jersey, Florida and Bangladesh.
However, there is no indication that humans are willing to do anything about rising greenhouse gas emissions. It's likely it's already too late to avoid climate disruption and flooding. People remain in denial.
Herrin also failed to mention peak oil production. Our oil-dependent, industrial food production uses yesterday's photosynthesis stored as coal, gas and oil. Since 1859, we have used up a trillion barrels of oil. An estimated trillion remain, but it is much more difficult to extract than the first trillion. This fossil energy accumulated over 400 million years. To grow enough biomass to replace current oil use of 80 million barrels per day and meet other demands for food and fiber would require 30 to 40 additional planets' worth of farmland.
How dependent are we? The bioenergetics are not good. In nature, if an animal expends more energy to capture food than the food contains, starvation is the eventual outcome. Our contrived food chain uses 10 calories of fossil energy to put one calorie of food on the table. When energy production declines, we can expect food production to decline also. Here is a recent headline from the British newspaper The Guardian: "US military warns oil output may dip causing massive shortages by 2015." See, you don't need to worry until at least 2015!
Thomas Malthus was also an economist, and his prediction about population outpacing food supply has been wrong for the past 200 years due to human cleverness at increasing food supply. The result has been an overshoot of carrying capacity. Some scientists think the population will crash to a lower carrying capacity of about 1 billion or less. Most geological epochs have rounding errors of 10,000 years or more, which is the time frame of our human civilization. Our moment in the sun will be a short run by geological reckoning.Herrin puts faith in knowledge and our rising per capita incomes, but wages are stagnating in America. As for knowledge ,we seem to lack even common sense in finance and other endeavors.
Economists talk only of growth when what we need is stability and a reversal of growth on an overpopulated, finite planet.Perhaps economist Ken Boulding said it best: "Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist."Economics is a subset of ecology and nature, not the other way around.
It is a biological and geological world, and we need to come to terms with its finiteness no matter how self-congratulatory we are at globalization and at being clever.
Lee Miller has a bachelor's degree in biology from Elizabethtown College in Pennsylvania and an master's degree in biological sciences from the University of Delaware. He retired after working 37 years with the state Department of Fish and Game, mostly on fish problems in the Delta. He is a member of the Sierra Club's Committee for Sustainable World Population.
Link -
http://www.recordnet.com/apps/pbcs.dll/article?AID=/20101204/A_OPINION03/1204031...============
Malthus is correct, as is Professor Albert Bartlett, it is simply not possible to have Exponential Growth of anything, in a Finite world.
We are now living thru a period, which will prove that statement to be fact, not just a theory!