What would happen if all the sea water on earth disappeared ? Things are far from as simple as you think.

sea ​​water disappears

71% of the earth's surface is covered by water. If the water is made into a large water ball, the diameter is about the distance from Beijing to Shanghai.

Although it is not large compared to the volume of the earth, 70% of the earth's surface is located at a depth of 4,000 meters below sea level. At the moment when the seawater suddenly disappeared, it was equivalent to a vacuum area of ​​1.322 billion cubic kilometers vacated on the earth.

At that moment, a large amount of air quickly filled up, and an unprecedented hurricane would form on the earth. The wind speed was not fast at first, but the wind became stronger and stronger, and within a few seconds, the wind speed increased to 300 kilometers per hour . Within tens of seconds, the wind speed increased to 1000 kilometers per hour.

Windows exploded, trees fell straight down, and cats, dogs, and people flew through the sky like feathers. Bouts of unbearable headaches can knock hundreds of millions of people across the planet into a coma .

At the same time, equipment such as ships traveling on the sea surface and submarines operating in the sea will also fall to the bottom of the sea, which is equivalent to falling from a height of 4,000 meters.

Immediately afterwards, the atmosphere became thinner in order to fill the space of the original ocean, and the temperature on the earth's surface dropped sharply , equivalent to the fact that all human beings have climbed the halfway up Mount Everest.

The sudden drop in atmospheric pressure will also cause a series of altitude sickness, just like people suddenly came to the Qinghai-Tibet Plateau. It is worth mentioning that people in the Qinghai-Tibet Plateau area are equivalent to climbing Mount Everest at this time , and there is hardly enough oxygen for breathing. Of course, the stench caused by the mass death of marine life is also inevitable.

The earth suddenly lost so much water, and was hit by a large amount of air at high speed within tens of seconds, earthquakes would be triggered at the junction of the plates in the crust. The real disaster is far more than these.

Will humans become extinct?

A week after the seawater disappeared, due to the loss of the additional pressure of the seawater and the continuous movement of the earth's crust, a large number of submarine volcanoes began to erupt. Volcanic ash covered the entire sky, and the original ocean began to be filled with magma , turning into a sea of ​​fire.

But people can no longer control these things at this time, because when a disaster occurs, the water vapor left in the clouds and atmosphere around the world is equivalent to about 10,000 square kilometers of water. It sounds like a lot, but don't forget that the original land of the earth is now equivalent to a plateau with an altitude of 4,000 meters , which already belongs to the snow line in the temperate zone.

In other words, it is impossible for the original ocean to accumulate water. Without the water cycle undertaken by the ocean, the earth may fall into an unprecedented drought period .

Dry weather, lack of water, and withered vegetation all increase the likelihood of fires. Once there is a large-scale fire in the Amazon rainforest, the carbon dioxide formed by the flames will inevitably lead to an increase in the temperature of the earth , making the already thin air even thinner. It is difficult for humans to survive in this environment.

Once this happens, the original permafrost layer will evaporate due to the high temperature, and then dozens of days of rainfall will form , which is the last rainfall that humans can see.

Although the plants in temperate regions would thus be freed from the frost, sooner or later, due to the loss of the water cycle, these plants would dry up and be mercilessly eaten by the flames .

Without forests and permafrost, humanity has lost its last source of oxygen and water, and perhaps those who work in groundwater pumping stations and their families can survive for a while.

After a year, the carbon dioxide in the atmosphere is no longer viable, and every breath is a lethal dose. These surviving people can go out of the ground to search for supplies, search for equipment, and make oxygen . As for whether they can survive, it all depends on their good fortune.

water on earth

The earth has existed for 4.6 billion years , and the time for seawater to disappear is actually not worth mentioning to it. Volcanic eruptions and greenhouse gases, while harmful to the atmosphere, are less than a tenth of what factories and cars emit .

The earth was once completely covered by sea water, and all living things, including humans, were conceived in this sea. Now only 70% is left, which means that the seawater on the earth has been reduced a lot .

Scientists have discovered that the Earth's mantle absorbs water that seeps down from the surface all the time. Due to the relatively high temperature of the early mantle, the mantle under high heat could not store too much water resources, which caused the continents on the earth to be submerged by the ocean .

After hundreds of millions of years of cooling, the temperature of the mantle has dropped a lot, and the continents buried in the seawater have only emerged. Therefore, a large part of our drinking water is drawn from groundwater .

At the same time, with the continuous expansion of the Mariana Trench, the sea water on the earth is actually decreasing year by year. As for why the sea level keeps rising, this is actually caused by the melting of glaciers caused by the greenhouse effect .

In addition, astronomers believe that the Venusian sauna's ocean also existed for 2 billion years . Now there is no water on Venus, not because of any supernatural phenomenon, but Venus is closer to the sun, the temperature is higher, and the evaporation rate is faster.

In fact, today's topic is also caused by people based on Venus. It was written by Randall Monroe in a book called "Those Weird and Worrying Questions" .

With the intensification of the greenhouse effect, the amount of transpiration on the earth's surface is also increasing year by year . The last drop of water on Venus disappeared 700 million years ago. If human beings no longer pay attention to it, such a catastrophe is likely to befall us.