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World Population Could Reach Nearly 11 Billion By 2100

vinces99 writes "A new analysis shows that world population could reach nearly 11 billion by the end of this century, according to a United Nations report issued June 13. That's about 800 million, or about 8 percent, more than the previous projection issued in 2011. The change is largely because birth rates in Africa have not declined as quickly as had been expected, according to Adrian Raftery of the University of Washington's Center for Statistics and the Social Sciences. The U.N. estimates use statistical methods developed at the center. The current African population is about 1.1 billion and it is now expected to reach 4.2 billion, nearly a fourfold increase, by 2100, Raftery said."

17 of 322 comments (clear)

  1. What?!? by Charliemopps · · Score: 5, Funny

    How the hell is the NSA supposed to keep track of all those people?!?!

    1. Re:What?!? by Freshly+Exhumed · · Score: 5, Funny

      Silly, when the big scooper trucks grab people up and feed them into the food chain the NSA will just file them under Project Make Room!

      --
      I deny that I have not avoided attaining the opposite of that which I do not want.
    2. Re:What?!? by TrollstonButterbeans · · Score: 4, Informative

      This makes little sense. The world population is supposed to peak in 2030 at 8.5 billion.

      http://www.businessinsider.com/analyst-world-population-will-peak-at-85-billion-in-2030-2012-11

      Even as population trends, this 11 billion by end of century figure is not believable. We can't predict the weather or climate change, but we can easily predict population growth and the African population growth angle is absolutely not justified in a non-speculative sociology realm.

      --
      Priest: "Universe from nothing, no laws of physics, sped up time"+ huge discrepancies. Creationism? No. Big Bang Theory
  2. Won't happen by Niris · · Score: 4, Interesting

    Unless we can support that much life with food, water and other resources, war for diminishing resources will wipe out enough population before we even get close to that.

    1. Re:Won't happen by lgw · · Score: 4, Insightful

      Unless we can support that much life with food, water and other resources, war for diminishing resources will wipe out enough population before we even get close to that.

      Reverend Malthus wrote the same in 1798 in "An Essay on the Principle of Population", and was wrong then. Malthusian predictions have been wrong ever since.

      I fear there will be great loss of life in the region due to war, but such resources are only scarce where local governments force them to become so to gain control over their people.

      Technology improves faster than population grows. As population growth rate has been slowing down (as a %) and technological improvements have only come at a faster pace, it's a mystery why people think the problems will get worse.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    2. Re:Won't happen by Anonymous Coward · · Score: 5, Insightful

      No technology can change the absolute fact that we have finite land and finite energy.

      Eventually, Malthus will be right.

    3. Re:Won't happen by Attila+Dimedici · · Score: 4, Funny

      Eventually, Malthus will be right.

      Eventually, the universe will reach heat death where all useful energy has been used.

      --
      The truth is that all men having power ought to be mistrusted. James Madison
    4. Re:Won't happen by Anonymous Coward · · Score: 4, Insightful

      hope you are right.

      You *hope* he is right?! You *hope* billions of people are killed from war, famine, and hunger? These words actually formed in your brain and trickled out onto your keyboard? Really?!

    5. Re:Won't happen by j-beda · · Score: 4, Insightful

      Well, there's the problem with trends. Assuming they go on forever means that, for example, everyone should now have about 52 model-Ts in their garage. That said... the population has been increasing at an accelerating rate and there's no sign that it's going to slow down.

      Except that the growth rate has been decreasing for a while now.

      http://en.wikipedia.org/wiki/Population_growth#Human_population_growth_rate

      Globally, the growth rate of the human population has been declining since peaking in 1962 and 1963 at 2.20% per annum. In 2009, the estimated annual growth rate was 1.1%.[5] The CIA World Factbook gives the world annual birthrate, mortality rate, and growth rate as 1.915%, 0.812%, and 1.092% respectively.[6] The last 100 years have seen a rapid increase in population due to medical advances and massive increase in agricultural productivity[7] made possible by the Green Revolution.[8][9][10]

      The actual annual growth in the number of humans fell from its peak of 88.0 million in 1989, to a low of 73.9 million in 2003, after which it rose again to 75.2 million in 2006. Since then, annual growth has declined. In 2009, the human population increased by 74.6 million, which is projected to fall steadily to about 41 million per annum in 2050, at which time the population will have increased to about 9.2 billion.[5] Each region of the globe has seen great reductions in growth rate in recent decades, though growth rates remain above 2% in some countries of the Middle East and Sub-Saharan Africa, and also in South Asia, Southeast Asia, and Latin America.[11]

    6. Re:Won't happen by Ichijo · · Score: 5, Insightful

      Technology improves faster than population grows.

      Technology hasn't yet stopped us from consuming natural resources faster than the Earth can replace them. Nor has it raised fuel efficiency in automobiles as quickly as the price of gasoline has been rising. So that "deus ex machina" that technology will solve all our problems doesn't seem to be working.

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
    7. Re:Won't happen by Maxo-Texas · · Score: 5, Informative

      Water is a bit more of a concern.

      At current growth rates, the weight of humans would equal the weight of the planet in 500 years.

      At current energy growth rates since the 1600's, the earth will be hotter than boiling water in under 400 years.

      Clearly something has to give.

      So less energy per person- lower quality of life- less water per person.

      Deer do just fine until they wipe out their environment and die off. No war needed.

      When population density is high enough, minor disruptions in food and water delivery, or a disease can kill a lot of people really fast.

      Typical bad plague single pass would kill about 140 million people now. That's just 2%.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    8. Re:Won't happen by HornWumpus · · Score: 4, Insightful

      He will be correct if and when the population stops growing due to lack of resources.

      He will finally be completely wrong if and when the population stops growing due to prosperity and educated females.

      Until then, go away chicken little.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
  3. Fearmongering in 3...2...1... by intermodal · · Score: 4, Insightful

    I fully expect this comments section to be full of "but what about all the resources we need for..." fears about "overpopulation". Where there's a will, there's a way. The zero population growth people would have us believe that the numbers are very different from what they really are, but the world can produce a lot more food than we do, and with minimal changes, it could be greatly increased.

    --
    In SOVIET RUSSIA... erm...NSA AMERICA, the Internet logs onto YOU!
  4. Malthusian Horror Fantasies by cervesaebraciator · · Score: 5, Interesting

    Predictions of Malthusian nightmares rarely seem to take birth control into account. We should keep in mind that effective hormonal birth control has only been widely available in the West since the seventies. In that short (yes, very short) amount of time it had to become both cheap enough and socially acceptable enough to make a demographic dent. We're only beginning to see the effects but even so 48% of the world's population lives in countries with sub-replacement fertility rates. Immigration props up most of the developed world demographically, but even so countries with some of the most advanced economies, like Germany and Japan, are experiencing a contraction of their populations. Indeed the latter, with its aversion to immigration, faces demographic collapse.

    There's a lot of reason to be concerned about pressure of resources as the developing world grows and developing economies advance. But much of the increased pressure is caused by people taking on aspects of Western life--consumerism, purchase of electronic conveniences which become apparent necessities (cell phone, computers, etc), and the increasing use of cars. But aside from stable polities, few things make life more comfortable in the West than birth control. If there was a bit of lag time, and indeed a small amount, before widespread adoption of birth control in the West would make a demographic difference, why should we not expect developing countries to follow suit shortly?

  5. The horse poop will be 6ft deep in Chicago... by ducomputergeek · · Score: 4, Insightful

    Read a headline from the 1890's in the Tribune when they estimated the horse poop would be 6ft deep by 1920 in the streets. Of course then came the automobile. That's the problem with all these long term prediction models. Things change in ways they never can account for.

    --
    "The problem with socialism is eventually you run out of other people's money" - Thatcher.
  6. Re:30-Year Projections Are Useless by Alomex · · Score: 5, Informative

    Actually 30 year projections when it comes to population are pretty accurate as the people who will be having children in thirty years are already born and hence their number is exact, all that is missing is the reproduction rate, which moves slowly.

    This is a common mistake by people who are not familiar with population projections. Thirty year time spans are "short" when it comes to population whereas they are absurdly long for almost anything else.

  7. Re:30-Year Projections Are Useless by Alomex · · Score: 4, Informative

    That assumes there are no epidemics, wars, economic depressions, or other fluctuations.

    No, it doesn't. All those have a modest impact on the combined population of the world. I.e. save a global pandemic or thermo-nuclear world war III, those figures will come to pass.

    we could easily have another 1918 flu

    Easily as in "it hasn't happened in 100 years and the probability is now ever lower with all the latest medical advances"

    or world war which kills 10%+ of the population.

    WWII, the deadliest global war ever killed 2.5% of the population.