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It is a map showing the tracks of every known hurricane in the North Atlantic (1851-2013) and in the Eastern North Pacific (1949-2013). Major hurricanes (category 3 or higher) are shown in yellow and tropical cyclones (intensity less than category 3) are shown in red.

The map is from the National Hurricane Center. Some of their other maps include the points of origin for tropical cyclones (here is August 21-31 from 1851-2015) and the total number of hurricane strikes by U.S. county (here is Florida from 1900-2010).

What has happened is a catastrophe. UBS is already estimating the insured damages in the Bahamas to be between $500 million and $1 billion. But as is usually the case, the total economic losses will likely exceed the insured losses.

I think the below map from the article, depicting population density by county, starts to show how uneven the economic landscape is across the US. Porter puts it this way: “This is the inescapable reality of agglomeration, one of the most powerful forces shaping the American economy over the last three decades.”

But, of course, we don’t really have a solution to this problem. Some are suggesting employment subsidies, such as the earned-income tax credit. While others are suggesting that we need to make it easier to build in the large blue spikes shown above. That way we’ll be able to more affordably accommodate the people who will ultimately need to move from rural to urban.

While this latter suggestion may seem grim for small-town America, it is perhaps a reminder of what cities really are at their core: Cities are labor markets. They are the places where people come to get a job and make money.

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