Brinkley reports that only 116 of 224 nations have birth rates above the "replacement rate" (steady population) of 2.1 children per couple. Thirty-four countries, according to Brinkley, have birth rates lower than 1.5. The US is at 2.06, just below the replacement rate.
What does this mean to predictions for world population growth?
"Demographers say the world's overall population will continue growing in the decades ahead but eventually will begin to stagnate and drop -- perhaps later this century. That does offer some benefits. The World Bank's dire prediction -- food production worldwide will have to increase 66 percent by 2055 -- may not turn out to be as problematic as predicted," Brinkley writes.
Some early signs of impacts? Brinkley suggests that the current crisis in the milk industry of the US stems from the fact that there are not as many children to drink milk--leading to overproduction which has led to the need to subsidize prices for milk farmers. Other industries, such as the housing market, will continue to see impacts--as fewer new owners will be in the market.
|Landscape view: corn is irrigated with a center pivot |
in the midst of semi-arid pastures in Nebraska's Sandhills
near Rose, NE. Photo by Larkin Powell
There are many who suggest that the "feed the world" argument is a straw-man argument in the first place--most of our ag exports goes to wealthy nations, not starving nations. But, even if we assume we can produce our way to feeding the world, falling birth rates have to be seen as good news. Ag production cannot be the only focus--education of women, contraception, and economic development all lead to lower birth rates and fewer mouths to feed.
And, in the end, lower demand for food means more water in our rivers...where it belongs.