Additional population will mean more people seeking a share of those often-limited resources.

人口增长将意味着更多的人从这些经常短缺性资源中分一杯羹。

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So, you have a compounded problem of the ordinary population with an additional population of newly displaced people facing these severe food shortages.

因此，不仅是普通大众，还有这些刚刚逃离家园的人都面临严峻的食品短缺问题。

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Additional social stresses may also occur because of the population explosion or problems arising from mass migration movements—themselves made relatively easy nowadays by modern means of transport.

由于人口的猛增或大量人口流动（现代交通工具使这种流动相对容易）造成的种种问题也会对社会造成新的压力。

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Prof Benton added that evolutionary change added an additional pressure to population management schemes, namely that it was much more difficult to reverse than ecological change.

BBC: Environmental change 'triggers rapid evolution'

With the young age of the population at that time (the US was still an emerging market, ) and additional culling of the population by World War II, not many people tapped into the social security system.

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But they show that the underlying population pressure for additional houses has become even stronger.

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