Saturday, February 16, 2013

The Dutch Model

With New Yorkers after Sandy looking toward the Netherlands for lessons, the Dutch are planning for sea level rise:
It has been to the Netherlands, not surprisingly, that some American officials, planners, engineers, architects and others have been looking lately. New York is not Rotterdam (or Venice or New Orleans, for that matter); it’s not mostly below or barely above sea level. But it’s not adapted to what seems likely to be increasingly frequent extreme storm surges, either, and the Netherlands has successfully held back the sea for centuries and thrived. After the North Sea flooded in 1953, devastating the southwest of this country and killing 1,835 people in a single night, Dutch officials devised an ingenious network of dams, sluices and barriers called the Deltaworks.
Water management here depends on hard science and meticulous study. Americans throw around phrases like once-in-a-century storm. The Dutch, with a knowledge of water, tides and floods honed by painful experience, can calculate to the centimeter — and the Dutch government legislates accordingly — exactly how high or low to position hundreds of dikes along rivers and other waterways to anticipate storms they estimate will occur once every 25 years, or every 1,000 years, or every 10,000.
And now the evidence is leading them to undertake what may seem, at first blush, a counterintuitive approach, a kind of about-face: The Dutch are starting to let the water in. They are contriving to live with nature, rather than fight (what will inevitably be, they have come to realize) a losing battle.
Why? The reality of rising seas and rivers leaves no choice. Sea barriers sufficed half a century ago; but they’re disruptive to the ecology and are built only so high, while the waters keep rising. American officials who now tout sea gates as the one-stop-shopping solution to protect Lower Manhattan should take notice. In lieu of flood control the new philosophy in the Netherlands is controlled flooding.
I knew the Netherlands were low, but I didn't realize they were this low:
 They are, by temperament, almost as allergic as Americans to top-down programs that impinge on personal and property rights; but water safety trumps pretty much every other priority in a country where 60 percent of the nation’s gross domestic product is produced below sea level.
This also rang true, when talking to a farmer forced to move by the government:
 Mr. Hooijmaijers organized the farmers. Negotiations were grueling and took years. “Every farmer thinks he has the best farm in the world,” is how he put it to me.
That's true, even for us crappy farmers.

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