Word: coasted
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...want to get a true sense of how thoroughly Hurricane Katrina punished the Gulf Coast last week, a flyover by helicopter or Air Force One won't do it. The real picture doesn't resolve itself until you go 450 miles up, where a flock of Earth-observing satellites have been training their cameras on the Gulf of Mexico and beaming what they see back home. Researchers at Louisiana State University in Baton Rouge began studying the first portfolio of pictures taken since the hurricane hit last week, and what they saw was a shock. Entire barrier islands are missing...
Which raises the inevitable question: If New Orleans is such a dangerous place, what in the world are we doing there--or, for that matter, anywhere else on the perilous Gulf Coast from Florida to Texas? Soggy soil, eroding shorelines and sudden storms make the whole region an unstable mess even without human intervention. And the more we build there, the worse we seem to make things, clawing away the natural river routes and marshlands that replenish the land and sucking out the oil and other subterranean resources that hold up the surface. Now, many experts warn, with greenhouse gases...
...cities on the Gulf Coast have always been potential deathtraps, they have always been gold mines too--great natural ports on a warm-water gulf, perfectly situated to profit from the traffic moving up and down one of the world's most important shipping lanes: the Mississippi River. The port of South Louisiana moves more tonnage each year than any other in the nation. Add to that the commodities the Gulf produces, including nearly 30% of the nation's oil, 20% of its natural gas and a third of its fish and shellfish, and it is clear--as many have...
...allowing the unreplenished coastal marshlands to sink, that tampering eventually kills the wetlands that do survive, as salt water intrudes deeper and deeper inland, killing vegetation that helps hold the soil together. The elimination of natural flooding also causes barrier islands, which line the Gulf and protect the coast, to shrink. The Mississippi in its naturally flowing state spilled silt into an intricate delta, spreading sediment east and west and fortifying the islands. Walled and dredged all the way to the Gulf, the river now dumps that silt right over the edge of the continental shelf. Geologists report that...
...Louisiana, the shrinkage is most dramatic. The state has lost 1 million acres of coast--11/2 times the area of Rhode Island--since 1930, nearly half of that vanished land lying between New Orleans and the Gulf. The city proper is estimated to be sinking 3 ft. per century. And while the whole world is struggling with rising sea levels, New Orleans and its environs hurt more than most. The State of Louisiana is estimated to be losing land at the alarming rate of about two acres every hour...