Cities are where most pressures are being felt because they draw almost 90 per cent of migrants.

To help ease the strain in Australia's biggest capital, Sydney, it'll soon be divided into three separate cities.

But, as Andy Park reports, not everyone's convinced that high-density living goes hand in hand with the quality of life Australians have come to expect.

For Part 1, click here:    • Australia's population: How big is to...  
For Part 3, click here:    • Can we encourage migrants out of crow...  

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