Word: persisted
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Dates: during 1990-1999
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Blue-Chip Layoffs Persist...
...steam, the Rockies boom has its pitfalls and built-in limitations. For one thing, it cannot go on forever in the continued absence of a general economic recovery. "The longer the national doldrums persist, the more susceptible we'll be," says Behrmann. "We're not an island. We may be a refuge. We can weather the storm. But we're not immune." For another, the region's scarcity of water poses as much of a challenge as it always has. The northern tier of Montana, Idaho and Wyoming, with plentiful rivers and low population density, expects no problem satisfying...
...volcano cause the ancient drought? "That's unlikely," Weiss says. "Volcanos are not known to generate climatic changes of this duration or intensity." So, with one mystery solved, researchers find themselves trying to explain how a drought can persist for three centuries. At least one thing seems certain. The ancient Mesopotamians did not cause the heavens to dry up. That raises the ominous possibility that it could happen again. And that modern humanity, by dumping pollutants into the atmosphere, is tinkering with a climatic system more complex and random than humans have realized...
...questions about the relevance of the pontiff's message persist...
...shunned. Two of the sites have never been looted, which will provide researchers with a wealth of clues to the still largely unsolved puzzle of who the Maya were -- and the mystery of how and why their civilization collapsed so catastrophically around the year 900. Of course, considerable mysteries persist and always will. "I wake up almost every morning thinking how little we know about the Maya," says George Stuart, an archaeologist with National Geographic. "What's preserved is less than 1% of what was there in a tropical climate...