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Retreаt frоm the Cоаst [H] With the threаt оf sea-level rise everywhere, cities around the world have turned to the Netherlands for guidance - a country that has faced and overcome the problem of rising seas. One Dutch firm, Arcadis, has prepared a design for a storm-surge barrier to protect New York City. The same company helped design a barrier 3.2 kilometers long that protected New Orleans from Hurricane Isaac's four-meter storm surge in 2012. "Isaac was a tremendous victory for New Orleans," said Piet Dircke, an Arcadis executive. "All the barriers were closed; all the levees held; all the pumps worked. You didn't hear about it because nothing happened." [I] New Orleans may be safe for a few decades, but the long-term prospects for it and other low-lying cities look dire. Even if we begin reducing our emissions of heat-trapping gases tomorrow, oceans will likely rise as Earth slowly adjusts to the amount already in the atmosphere. Among the most vulnerable cities is Miami. "I cannot envision southeastern Florida having many people at the end of this century," says Hal Wanless, chair of the University of Miami's Department of Geological Science. "We think Miami has always been here and will always be here. How do you get people to realize that Miami - or London - will not always be there?" [J] Unless we change course dramatically, our carbon emissions will drastically change the geography of many shorelines by the next century, if not sooner, and large numbers of people will have to abandon coastal areas in Florida and other parts of the world. "From the Bahamas to Bangladesh and a major amount of Florida, we'll have to move, and we may have to move at the same time," says Wanless. Columbia University geophysicist Klaus Jacob sees most of Manhattan's population fleeing to higher ground and the island becoming a kind of Venice, subject to periodic flooding, perhaps with canals and yellow water cabs. At different times in different countries, engineering solutions will no longer be enough. Then the retreat from the coast will begin. QUESTION: Which of the following sentences from paragraph I gives the author's main argument?
Dutch Lessоns [K] Cаn а single stоrm chаnge nоt just a city's but a nation's policy? It has happened before. The Netherlands experienced its own coastal catastrophe nearly 70 years ago, and it transformed the country. [L] The storm roared in from the North Sea on the night of January 31, 1953. Ria Geluk was six years old at the time and living on an island in the Dutch province of Zeeland. She remembers a neighbor knocking on her family's door in the middle of the night to tell them that the dike 3 had failed. Later that day, the whole family climbed to the roof. Geluk's grandparents lived just across the road, but water poured into the village with such force that they were trapped in their home, and they died when it collapsed. The disaster killed 1,836 in all, including a baby born on the night of the storm. [M] Afterwards the Dutch began an ambitious program of dike and barrier construction called the Delta Works, which lasted more than four decades and cost more than $6 billion. One crucial project was the eight-kilometer barrier built to defend Zeeland from the sea. The final component of the Delta Works - a movable barrier protecting Rotterdam Harbor and some 1.5 million people - was finished in 1997. Like other sea barriers in the Netherlands, it's built to withstand a 1-in-10,000-year storm - the strictest standard in the world. [N] The transparent domes of Rotterdam's Floating Pavilion represent an even more innovative approach to taming 4 the sea. The three domes - each about three stories tall - are made of a plastic that is a hundred times as light as glass. Though the domes are used for meetings and exhibitions, their main purpose is to demonstrate the potential of floating urban architecture. The city anticipates that as many as 1,200 homes will float in the harbor by 2040. "We think these structures will be important not just for Rotterdam but for many cities around the world," says Bart Roeffen, the architect who designed the pavilion. [O] An inscription 5 on the side of a storm-surge barrier in Zeeland says " Hier gaan over het tij, de maan, de wind, en wij" - Here the tide is ruled by the moon, the wind, and us. It reflects the confidence of a generation that took for granted - as we no longer can - a reasonably stable world. "We have to understand that we are not ruling the world," says Jan Mulder of Deltares, a Dutch coastal management firm. "We need to adapt." 3 A dike is a long wall that prevents water from flooding a place. 4 If you tame something dangerous, you bring it under control. 5 An inscription is writing carved into something made of stone or metal. QUESTION:Write in one sentence a central point (thesis) for the section, Dutch Lessons.