Rising ocean levels and storm surges have wreaked havoc with human settlements in past centuries and pose grave threats in our own time. In a recent issue of the New York Times, anthropologist Brian Fagan recalls a time 8,000 years ago when the area now filled by the North Sea was largely dry land, known as Doggerland. By 5500 B.C., Fagan explains, Doggerland had vanished under the chilly waters of the North Sea. The people of the Low Countries have battled the North Sea ever since, devising ingenious methods to protect themselves. The Dutch government has built the Delta Works to guard their country and people. Click here to read this fascinating article.