News tagged with human population density

Why innovation thrives in cities

In 2010, in the journal Nature, a pair of physicists at the Santa Fe Institute showed that when the population of a city doubles, economic productivity goes up by an average of 130 percent. Not only does total productivity increa ...

Jun 04, 2013
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Rodent size linked to human population and climate change

You probably hadn't noticed -- but the head shape and overall size of rodents has been changing over the past century. A University of Illinois at Chicago ecologist has tied these changes to human population density and climate ...

Jul 31, 2009
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