Word: northward
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...fire ants first arrived in Mobile, Ala., in 1918, hidden in a cargo from their native Brazil. Now they infest at least 133 million acres in nine Southern states from Texas to North Carolina and are slowly spreading northward. They live in open areas (farm land, pastures, even lawns) where they build 3-ft-high mounds that hinder mowers, plows and other machinery. They swarm over farm animals or people who stumble over the mounds, stinging them viciously. The ants' venom, which can cause coma in allergic individuals, produces the painful burning sensation that gives the ants their name...
Other American scientists, however, warn that reducing the northward flow of the Pechora's relatively warm fresh-river water could reduce the temperature of the Arctic Ocean and cause the ice to expand. Or the Arctic Ocean could become saltier, resulting in a lower freezing point and causing the ice to melt. In either case, the river-reversal scheme has the potential to cause major climatological repercussions...
Cocaine, which comes mostly from Peru, Ecuador, Bolivia and Colombia, is often flown northward in light aircraft from Colombia to Caribbean coasts. After landing at a Caribbean island to "cool off," the cocaine is transported by boat or plane to Florida or flown to Canada from where it is smuggled southward into the U.S. It is the amateurs who try smuggling through Mexico and who increasingly are getting caught there...
...storm built slowly, ominously. From the Gulf of Mexico, huge masses of warm, moist air moved northward to ward the center of the continent. From the West, a threatening layer of cooler, drier air seeped eastward toward the Appalachians, sliding under the moist air. As the two layers converged in an uneasy mixture, tremendous turbulence developed. In the roiling atmosphere, embryo funnels of spinning air formed, dissolved and reformed-a telltale sign that the tornado season had arrived...
...meteor streaked northward across the U.S. sky. From the ground, it was first observed south of Salt Lake City, and observers watched it pass over Idaho and Montana before disappearing north of Calgary, Canada. Not until last week, however, was it revealed that the 1,000-ton meteor was also seen from above, by a U.S. Air Force satellite. It was these observations that told scientists how chilling a phenomenon the meteor actually...