Det kan ikke siges for tit. Overbefolkning er ikke et problem. En nation skal have bæredygtighed, hvad folketallet anbelanger. Arbejdskraftens reproduktion. Et stabilt fødselstal hos landets oprindelige befolkning må være målet – ungefær 2,1 barn per kvinde for Danmarks vedkommende:
Five Myths About the World’s Population
By Nicholas Eberstadt | November 6, 2011
1. The world is overpopulated.
Sure, 7 billion is a big number. But most serious demographers, economists and population specialists rarely use the term “overpopulation” — because there is no clear demographic definition.
For instance, is Haiti, with an annual population growth rate of 1.3 percent, overpopulated? If it is, then was the United States overpopulated in 1790, when the new country was growing at more than 3 percent per year? And if population density is the correct yardstick, then Monaco, with more than 16,000 people per square kilometer, has a far greater problem than, say, Bangladesh and its 1,000 people per square kilometer.
Back in the 1970s, some scholars tried to estimate the “optimum population” for particular countries, but most gave up. There were too many uncertainties (how much food would the world produce with future technologies?) and too many value judgments (how much parkland is ideal?).
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