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The history of the Panama Canal dates back to the early 16th century, when the Spaniards laid a solid foundation for this great project through sophisticated surveys. However, it took 400 years to completely connect this "world bridge". The Panama Canal is like a huge scar, a testament to the tenacious perseverance of human beings and the rapid progress of technology.
However, in this tortuous process, there was a force that threatened the safety of this project at an alarming speed. Known as the "Black Dragon," this force appeared in the plains of America 89 years ago and swept across large swathes of land in just 72 hours, shaking the world. But what exactly makes this "black dragon" so powerful?
In May 1934, while the inhabitants of the plains of the southwestern United States were still bathed in the glimmer of the morning sun, they suddenly heard the wind outside their windows. At first, no one was upset, because in the plains, strong winds are a normal routine. However, they never imagined that this morning would witness an unprecedented natural wonder.
As the night faded and the morning light reflected on the earth, the residents who were awakened by the sound of the wind couldn't help but widen their eyes and were surprised to find that some behemoth seemed to be moving rapidly in the sky. However, because it was still early, they could not see the true identity of this "UFO". However, as the sun rises, they get a glimpse of the truth - a huge "black dragon" is covering the entire sky.
Composed of sand, trees, houses and soil, this dragon obscured 3.36 million square kilometers of the U.S. sky. It extends for more than 2,400 kilometers from north to south, 1,400 kilometers wide from east to west, and 3 kilometers high. Huge winds pushed the black storm so fast that it spread from the Midwest to the eastern coast.
Amazingly, in just 72 hours, this huge black storm swept through 2/3 of the territory of the United States, and then quickly disappeared into the depths of the Atlantic Ocean. The statistics after the disaster are shocking, the Midwest was blown three feet by this "black dragon", and the top soil was completely swept away, revealing the sand layer below.
The total weight of these soils swept away by the storm exceeded 300 million tons. You know, the amount of soil excavated in the Panama Canal is only about 150 million tons, which means that this soil is enough to fill the Panama Canal twice. The Midwest has lost a lot of soil and has become barren. The soft topsoil was taken away, leaving only sandy soil, making the local soil extremely arid and almost impossible to grow crops. This sudden change in the natural environment forced local farmers to leave.
More than 250,000 farmers have been forced to migrate alone. In addition to these farmers who lost their land, tens of millions of Americans were affected by the "Storm Black Dragon" in the process. After the disaster, the United States had to look for the cause and eventually concluded that the soil in the Midwest had become very soft due to chronic overcultivation and monoculture of agriculture. When a storm strikes, the soil is easily wrapped up in the air and eventually swept into the depths of the Atlantic.
The ravages of this "black dragon" have made the United States deeply reflect on the protection of soil and the environment. Not only that, but the disaster is also a stark warning to the world, reminding us to cherish natural resources and protect the environment from the ruthless destruction of natural forces again. This is a story about nature and people, a thought-provoking historical event that should not be forgotten.
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