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1. lesson4
Listen to Smokey the Bear At one time the United States was heir to great riches, for more than half of our country was covered with forests. Now the majestic woodlands have dwindled to the point where we have no surplus of trees. Of course, only a traitor to the beauties of nature would deliberately set a forest fire, but careless citizens are the vandals who are responsible for much of the destruction. In time of drought especially, scorching fires started by careless smokers can reduce a beautiful forest to acres of blackened stumps. Theodore Roosevelt understood that we cannot abide the continual loss of our precious forests but we must learn to live in harmony with nature. In 1905 he appointed Gifford Pinchot to head the Forest Service which promptly began to unify efforts in caring for our national forests. The modern forest rangers, from the "lookouts" stationed on mountain summits to the "smokejumpers" who parachute from airplanes to fight fires, ask us to heed the advice of Smokey the Bear, who has become their symbol. Smokey says, "Only you can prevent forest fires."
Problems We Face Despite wars, disease, and natural disasters, our world is experiencing a population explosion (boom) that threatens to change or disrupt life as we have known it. Vast numbers of people must be fed and housed, and in the process a whole rash of problems has descended upon the human race. First has been the pollution of the air and the contamination of the water supply. Second has been the rapid exhaustion of fuels, minerals, and other natural resources. The response to this situation has ranged from utter disbelief to exaggerated concern. Since scientists themselves disagree on the severity of the problem, our feeble knowledge is surely unable to suggest the correct course of action. But we cannot stand still because there is too much at stake. We are, therefore, compelled to unite in our efforts to insure that human life on this planet does not cease. We must learn to be thrifty, even miserly, with the gifts of nature that we have formerly taken for granted. If our past reveals a reckless squandering of our natural possessions, we must now find an intelligent guide to their use so that we may remain monarchs of a world that has peace and plenty.
Punishment for Drug Abuse A recent attempt by New Jersey's attorney general to lessen the penalties for use of marijuana has caused fierce arguments around the country. Those who detest the drug users sneer and scowl at the light treatment of offenders. They reject the attorney general's recommendation as lacking a morsel of sense, claiming it would only encourage more drug abuse. They consider the drug addict much like vermin that must be stamped out. Such citizens continually wail for stiffer penalties. Those in favor of a milder approach to the drug problem point to the poor results achieved by prison terms. They feel addicts should be given medical help. Also, in enforcing harsh drug laws, police tend to be viewed as a symbol of unwelcome authority. The problem demands a solution. We cannot remain neutral or unconcerned, nor can we afford to muddle through with ineffective measures, for this is not a trifling matter.
A Fan in the Air Fog, tiny droplets of water vapor, is the villain of the airports. In an effort to eliminate dense fog from airports, weathermen utilize giant fan, nylon strings, and chemicals dropped from planes or shot upwards from strange machines on the ground. Nothing works as well, though, as a new weapon in the fight against fog: the helicopter. Researchers believe that if warm dry above the fog could somehow be driven down into the humid blanket of fog, the droplets would evaporate. thus clearing the air. In a recent experiment to test their theory the researchers had a helicopter descend into the fog above barely visible Smith Mountain Airport near Roanoke, Virginia. The blades of the helicopter caused the air to circulate downwards and an enormous hole in the clouds opened above the airport. Weathermen predict that with larger, more expensive helicopters they will be able to make the thickest fog vanish.
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