Researchers find 'large is smart' when it comes to cities

Cities are considered by many to be a blessing and a curse. Large cities generate considerable wealth, they are home to many high paying jobs and are seen as engines of innovation. But cities also generate pollution, crime and poor social structures that lead to the urban blight that plagues their very existence.

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<p><a href="http://www.physorg.com/news96002930.html">Researchers find 'large is smart' when it comes to cities</a></p> <p>Cities are considered by many to be a blessing and a curse. Large cities generate considerable wealth, they are home to many high paying jobs and are seen as engines of innovation. But cities also generate pollution, crime and poor social structures that lead to the urban blight that plagues their very existence.</p>