an arm of the Atlantic between Great Britain and the European mainland. About 201,000 square miles (520,600 square kilometers); greatest depth, 1,998 feet (610 meters).
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North Sea oil and gas, which accounts for 14% of Norway’s GDP, 40% of exports, and employs 7% of its workforce, has made the country one of the richest in the world, by GDP per capita.
In 2014, a Netherlands-based company opened an osmotic plant perched atop the Afsluitdijk, a dike that separates the salty North Sea from the freshwater bay of IJsselmeer.
Years earlier, Merrell, a physical oceanographer at Texas A&M University at Galveston, had toured the gigantic Eastern Scheldt storm surge barrier, a nearly 6-mile-long bulwark that prevents North Sea storms from flooding the southern Dutch coast.
With limited land and many cities that are at or below sea level, the Dutch are taking advantage of their North Sea border to create new energy sources.