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11/16/07

CSMONITOR: The Netherlands: How to fight a rising sea - by Peter N.Spotts

For the complete report from the csmonitor.com click on this link

The Netherlands: How to fight a rising sea - by Peter N.Spotts

The Dutch enjoy a hard-earned reputation for building river dikes and sea barriers. Over centuries, they have transformed a flood-prone river delta into a wealthy nation roughly twice the size of New Jersey. If scientific projections for global warming are right, however, that success will be sorely tested. Globally, sea levels may rise up to a foot during the early part of this century, and up to nearly three feet by century's end. This would bring higher tidal surges from the more-intense coastal storms that scientists also project, along with the risk of more frequent and more severe river floods from intense rainfall inland.

The Dutch government plans to spend €2.2 billion ($3.2 billion) to make changes to its rivers to control floods. Meanwhile, along the coast, the big worry is not about any average increase in sea level, which scientists project to rise here between 35 and 85 cm (14 to 33 inches) by 2100. Instead, the biggest concern is the change in storm-surge patterns that will ride atop that rise, says Pier Vellinga, who heads the climate program at Wageningen University. Globally, some 21 percent of the world's 6.6 billion people live within 20 miles of a seacoast – and nearly 40 percent within 60 miles, says Robert Nich­­olls, a professor of civil and environmental engineering at the University of Southampton in England. Seacoast populations who face the greatest risk from floods, storms, and sea-level rise live on river deltas, says the UN-sponsored Inter­governmental Panel on Climate Change.

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