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If the world's population lived in one city, how large would that city be?; Infographic
Topic Started: 10 Jul 2012, 11:43 AM (2,446 Views)
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http://persquaremile.com/2011/01/18/if-the-worlds-population-lived-in-one-city/

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miw
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Alex Barton
10 Jul 2012, 11:43 AM
Cool graphic.

I would have been interested to see the comparisons with Brisbane and Taipei though.
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Global fertility will fall to the replacement rate in less than fifteen years

Demographers are suggesting there may be a 'supply shock' hitting the world's population. The UN thinks there will be almost 11 billion of us in 2100. But other professional demographers are not so sure (sorry, one key story is behind a paywall, but the chart below summarises the conclusions). They say the game is over on population growth because the world's fertility rate will fall to replacement levels in about 10 years, and decrease from there. The smart money is on an 8 billion world population by 2100, and that is a huge difference.

One consequence is that 'per person' output will be very much higher, giving the potential for continued growth in living standards.

In our view, global fertility will fall to the replacement rate in less than fifteen years. Population may keep growing for a few more decades from rising longevity but, reproductively speaking, our species will no longer be expanding. We forecast that world population will peak at around 8.7 bln in 2055 and will then decline to 8bn by 2100. Thus, world population could peak half a century sooner and, by 2100, stand 2.8bn below what the UN currently predicts.

Developed countries have long had low birth rates but the largest declines in fertility are in developing countries with the Chinese, Russians, Koreans and Brazilians no longer replacing themselves. A large decline in the Chinese workforce is now unavoidable irrespective of the removal of the one-child policy. Due to a skewed gender ratio, we found that China no longer has enough child-bearing age women to stabilize its population.

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Read more: http://www.interest.co.nz/opinion/66343/mondays-top-10-internet-everything-peak-population-deloittes-responsibility-re-insuran
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stinkbug
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Give everyone 1 square metre and they'd all fit into Tasmania a couple of times over.
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willy_nilly
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Good post Alex.
Global population growth peaked in 1962 and has been declining since.
Half the worlds nations are below replacement fertility now.
Oz has been below replacement fertility since 1973. Immigration is what has made us grow and our demographic momentum.
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stinkbug
16 Sep 2013, 04:19 PM
Give everyone 1 square metre and they'd all fit into Tasmania a couple of times over.
That would be the start of the square meter boom.
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genX
16 Sep 2013, 08:58 PM
That would be the start of the square meter boom.
These are all just ways of expressing population density. Sometimes it helps to use different ways of expressing things when the numbers are very large.
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genX
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stinkbug
16 Sep 2013, 09:38 PM
These are all just ways of expressing population density. Sometimes it helps to use different ways of expressing things when the numbers are very large.
Maybe I should use a /sarc tag.
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stinkbug
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genX
17 Sep 2013, 03:27 PM
Maybe I should use a /sarc tag.
No no, I understood... :D
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mel
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stinkbug
16 Sep 2013, 04:19 PM
Give everyone 1 square metre and they'd all fit into Tasmania a couple of times over.
if we built high enough we could fit them all in Canberra :lol
APF - a place where serious people don't take themselves too seriously. There's nothing else like it.
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