Wednesday, March 03, 2010

the century of famine

Culture Change | Although, when discussing theories of famine, economists generally use the term “neo-malthusian” in a derogatory manner, the coming famine will be very much a case of an imbalance between population and resources. The overwhelming cause of the imbalance and famine will be fossil-fuel depletion, not government policy (as in the days of Stalin or Mao), warfare, ethnic discrimination, bad weather, poor methods of distribution, inadequate transportation, livestock diseases, or any of the other variables that have often turned mere hunger into genuine starvation.

The increase in the world’s population has followed a simple curve: from about 1.7 billion in 1900 to about 6.1 billion in 2000. A quick glance at a chart of world population growth, on a broader time scale, shows a line that runs almost horizontally for thousands of years, and then makes an almost vertical ascent as it approaches the present. That is not just an amusing curiosity. It is a shocking fact that should have awakened humanity to the realization that something is dreadfully wrong.

Mankind is always prey to its own “exuberance,” to use Catton’s term [2]. That has certainly been true of population growth. In many cultures, “Do you have any children?” or, “How many children do you have?” is a form of greeting or civility almost equivalent to “How do you do?” or, “Nice to meet you.” World population growth, nevertheless, has always been ecologically hazardous. The destruction of the environment reaches back into the invisible past, and the ruination of land, sea, and sky has been well described if not well heeded. But what is even less frequently noted is that with every increase in human numbers we are only barely able to keep up with the demand: providing all those people with food and water has not been easy. We are always pushing ourselves to the limits of Earth’s ability to hold us.

Even that is an understatement. No matter how much we depleted our resources, there was always the sense that we could somehow “get by.” But in the late twentieth century we stopped getting by. It is important to differentiate between production in an “absolute” sense and production “per capita.” Although oil production, in “absolute” numbers, kept climbing — only to decline in the early twenty-first century — what was ignored was that although that “absolute” production was climbing, the production “per capita” reached its peak in 1979 [1].

The unequal distribution of resources plays a part, of course. The average inhabitant of the United States consumes far more than the average inhabitant of India or China. Nevertheless, if all the world’s resources were evenly distributed, the result would only be universal poverty. It is the totals and the averages of resources that we must deal with in order to determine the totals and averages of results. For example, if all of the world’s arable land were distributed evenly, in the absence of mechanized agriculture each person on the planet would have an inadequate amount of farmland for survival: distribution would have accomplished very little.

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