A finalist in The Dish’s “Map of the Year” contest – with relevance for us north of the border:
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Nik Freeman maps America’s empty space:
Despite having a population of more than 310 million people, 47 percent of the USA remains unoccupied. Green shading indicates unoccupied Census Blocks. A single inhabitant is enough to omit a block from shading.
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Canada is more dramatic.















Population follows temperature. Permafrost map for comparison:
http://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/earthsciences/jpg/assess/2007/ch3/images/fig12_e.jpg