Word: culprits
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...November. At first they speculated that the phenomenon might be the result of increased sunspot activity or the unusual weather systems of the Antarctic. It is now widely accepted that winds are partly responsible, but scientists are increasingly convinced that there is a more disturbing factor at work. The culprit: a group of man-made chemicals called chlorofluorocarbons (CFCs), which are used, among other things, as coolants in refrigerators and air conditioners, for making plastic foams, and as cleaning solvents for microelectronic circuitry. Mounting evidence has demonstrated that under certain conditions these compounds, rising from earth high into the stratosphere...
Efforts are being made all over to educate bikers about traffic rules and to train motorists in the ways of bikers. In Los Angeles, state and county planners are even contemplating a 2 1/2-mile-long overhead bikeway that would rise above the congested streets around UCLA. But the real culprit on American roads, as conspicuous among cars, cabs and trucks as among cyclists, is an arrogant, scofflaw spirit that sends vehicles -- those with four as well as two wheels -- streaking through red lights and stop signs, just as it tempts pedestrians into habitual jaywalking...
...just not sure what it was," Penn spokesman Virgil Renzulli said. "At one point, the chief culprit was the water supply at Franklin Field. But it may not be the water...
...made sense of the malady. Steere investigated a group of children, in and around Lyme, Conn., who were suffering from a mysterious form of arthritis. He traced the outbreak to speck-size ticks of the genus Ixodes, carried mainly by mice and deer. In 1982 federal researchers isolated the culprit from the tick: a corkscrew-shaped bacterium, or spirochete, similar to the one that causes syphilis...
...FOURTH Jaws movie came out this summer, and the culprit was a living undersea menace which terrorized beachgoers...