Conservation Reader

by Harold W. Fairbanks

After the coal was made, but before men came to the earth, parts of the sea bottom with its buried treasures were raised to form hills and mountains. Then the rainwater began its work upon the slopes, and after a time washed away so much of the overlying material that the coal was exposed at the surface. At last through some accident, such as lightning perhaps, men learned that this black substance would burn. Coal was little used, however, as long as there was an abundance of wood and the needs of people were few.

As manufacturing and the use of the steam engine increased, coal grew in value. The business of mining coal finally became one of the great industries. The mining operations were carried on as carelessly as though the supply in the interior of the earth were inexhaustible. In the underground working it is customary to leave about one quarter of the coal in the form of pillars for the purpose of supporting the roof. At a little more expense other materials could be substituted for these pillars and all the coal could be taken out.

In using the coal we waste about another quarter. Stoves and furnaces are usually built so poorly that a large part of the value of the coal escapes as gas and smoke. In large cities and manufacturing districts the smoke becomes a great nuisance. In the making of coke from coal, enormous quantities of coal tar and gas have been lost. Most engines consume a far greater amount of coal than they should in doing a given amount of work. Most of us do not know how to use coal economically in our homes, and thus aid not only in wasting the coal supplies but in making the cost of living higher than it should be. All together, in the handling of coal we lose fully half of it. The coal supply of the earth is disappearing very fast, and at the rate at which its use is now increasing it may not last more than one hundred years.

If we cannot use coal without wasting so much, would it not be wiser for us to turn our attention more fully to the sources of power in the streams which are flowing down all our mountain sides? The use of this power when turned into electricity would enable us to save a large part of the coal, oil, and gas that are now used, and so make them last longer.

It is far easier to waste oil and gas than coal, for, when we have drilled holes in the earth, unless we are very careful the gas will escape into the air and the oil will become mixed with water, so that it will be difficult for us to get it.

Oil and gas are confined under great pressure hundreds and often thousands of feet below the surface. To make clear how easy it is to waste them, we might compare them to the compressed air in an automobile tire. If the tire is punctured by a nail, the air issues suddenly with a sharp, whistling sound until the pressure inside is gone and no more will come out.

For many years we have been puncturing the crust of the earth, where oil has been discovered, and letting the oil and gas escape. We have saved most of the oil, but nearly all the gas has been wasted. The gas will finally stop coming out when the pressure is gone, just as the air did in the automobile tire.

On the opposite page is a picture of a "gusher" in the Sunset oil field, California, which tells the story of how we are permitting the valuable substances within the earth to be wasted. In drilling this well the oil men suddenly struck a deposit of oil and gas under great pressure. The drilling tools were blown out of the well and a column of oil and gas shot up 150 feet. For a time the well flowed forty thousand barrels of oil each day, and an unknown quantity of gas. Much of the oil was scattered around the surrounding country, and all the gas was lost. Men worked for weeks making reservoirs of earth in an attempt to save the river of oil.

Another well a few miles distant struck an enormous quantity of gas. It blew off for days with a roar like that of the steam from a giant engine. Then it took fire, and the column of flame at night was a fearful sight. There was gas enough lost from this one well to light a city for months.