The human significance of coal lies in the effect which the release of its energy has exercised upon the struggle between the acquisitive instinct and the consciousness of kind for ascendancy over the soul of man. Through its creature, the industrial revolution, it has given man command of an economic surplus and set him free to win the good life for each individual and to substitute mutual aid for war in international relations if he will.
But the first effect of coal was not to usher in the good life but to intensify the ancient struggle, widening its stage from pocketed civilizations to the world. For more than a hundred and fifty years, the abundant and readily accessible coal of Great Britain made her the protagonist in the world drama. Her acquisitive instinct, charged with cosmic energy, shot lines of imperial expansion out across the seas to America, India, Australia, China, and Africa. Her coal-created wealth enabled her to maintain the mastery of the ocean highways which she had won from Spain and Holland and to hold it against Napoleonic France and later against imperial Germany. It gave her an economic surplus upon the basis of which the consciousness of kind welded her people into one nation and ended the civil wars which from the time of the Danish invasion and the landing of William the Conqueror had kept each little group within the island armed against every other little group. And it transformed her with jarring rapidity into a country that lived by manufacture and by trade and supported a far larger population than could have lived upon the island if it had been merely an agricultural country raising its own food.
In order that this swelling population might go on getting coal out of the mines and turning out products from the factories it must be adequately and cheaply fed. The place where its food came from was chiefly America. During the hundred and fifty years of England's primacy, America was not only her granary but increasingly the granary of other nations, and the great reservoir for all their overflowing populations. For the industrial revolution in England was followed by the harnessing of coal in France, then in Germany, then later in Japan, and this set in motion among them the processes of imperial expansion, whose friction and clash culminated in the World War.
It was as necessary to the success of the industrial revolution, particularly in specialized little England, that the surplus populations which were poured by the million into America should send back food to Europe, as it was that their factory machines should have coal to drive them. This interdependence was not conscious, not a deliberate effort on either side, but it was an extremely practical fact nevertheless. In order that England might live by trade, some other land must live by agriculture, and during the first hundred and fifty years of the industrial revolution that land was America.
To live by agriculture was an easy thing in the New World, easier than it had ever been anywhere before,—to live and to feed a continent besides. For America is the only great modern nation whose history is written not against a background of famine but against a background of economic abundance. After the first thin stream of colonial adventurers and exiles for conscience' sake had established themselves upon the Atlantic coast, her seemingly boundless domain opened up before the hungry millions of Europe like the promised land of milk and honey. Unlike the peoples of the great Asiatic and European folk-wanderings, they found no comparably developed peoples to bar their way. As they spread from the Atlantic to the Blue Ridge and Alleghenies, then along the Great Lakes and down the Ohio; on across the Mississippi, the Kansas prairies, the Great Desert, the Sierras and Rockies to California and the Golden Gate, they found only hunting tribes or the fading remnants of cliff-dwelling and primitive agricultural clans. These they could meet not only with effective weapons of defence but also with a highly developed agricultural technique.
At first America's planless prosperity had little to do with coal and nothing at all with manufacture. It was a prosperity made up of the sum of her food products, and men skimmed the soil and the forests with only one thought, to make that sum immediately great. Exploitation got into their blood. It was the method by which they grew rich, and when the wealth of the coal deposits was added to the wealth of the fields and forests, they carried the same methods of planless exploitation over into the coal mines. England must still depend on them for food, but they did not have to depend so abjectly on her for manufactures after the industrial revolution crossed the Atlantic at the call of the Pennsylvania coal fields.
After the industrial revolution harnessed their unique reservoirs of coal, the people of the United States enjoyed a degree of economic security such as no other people ever enjoyed. Had they been spiritually prepared, they might have used this economic abundance to establish brotherhood among men. But after all, they themselves were Europeans who had fled from the ancient tyranny of hunger. To them America was naturally more an escape from that haunting menace than a challenge to the good life. Here and there, as in the Puritan theocracy, they heard and tried to obey the challenge. But they were not prepared.
The hungry immigrant millions swarmed across the continent, laying waste the forests, skimming the fresh fertile soil, growing prosperous by destruction rather than by thrift and planful use. They caroused and swaggered like prodigals. They glorified mere acquisition, measuring a man's worth by the money he owned. As they filled the continent, the old world fever of imperial expansion entered their blood. They seized Cuba and the Philippines, Haiti and Santo Domingo. They set about building the greatest navy in the world. After a few faltering efforts to lead the warring nations to peace through conference and conciliation, they threw the weight of their wealth and numbers into the balance and with fire and sword imposed a victorious peace. And they were able to do this in the last analysis because of the enormous power of their coal supply, for coal in a modern industrial civilization means guns and munitions of war, transportation systems to set armies in the field, and the ability to supply them after they get there. America's coal-wrought wealth made her decisive in battle. Even so today her unique reserves of coal make her the arbiter between peace and war. Possessed of the richest coal fields in the world, she holds the destiny of the nations in her hands. For coal has grown to mean food and clothing and shelter, transportation and communication, and the economic surplus and the leisure without which science, invention, art, representative government, democratic education, and enlightened organized religion would atrophy and perish.
Since coal means all these things, and since America owns the world's greatest available reserves of coal, it is obvious that the manner in which her people develop and govern their coal fields is of crucial importance, not only to themselves, but also to the rest of the world. Before the United States entered the World War, her people were hardly aware of this fact; even the momentous experience of the war has but dimly impressed its meaning upon the national mind.
Our coal measures underlie an area of more than four hundred and sixty thousand square miles. They contain almost four thousand billion tons of lignite, bituminous, semibituminous, anthracite, and semianthracite coals. About two-fifths of the world's annual output is mined in the United States.