Our planet is called “Earth”, but contrary to the name, 71% of the Earth’s surface area is covered by water. The amount of land only accounts for about 29%.
And this 29% figure is not habitable everywhere. With the Earth’s population increasing, many people are concerned that the time will come when people will no longer have land to live in.
With such a shortage of land, what would happen if we swapped land and sea? That is, what would the Earth be like if 71% were land and sea only 29%?
The answer is really not what you imagine, because the Earth at that time was no longer Earth.
It should be known that the Earth as it is today is the amount of water that covers the entire planet. Water absorbs a huge amount of heat from the Sun, without showing any signs of increasing in temperature. Therefore, the presence of water is what cools the Earth.
When water is reduced to such 60%, the inevitable consequence is that the Earth’s temperature will increase, turning many lands into arid. In other words, even if the Earth had a lot of land, the habitable places would be even less than now.
70% of the oxygen in the atmosphere is supplied by aquatic plants. With the water disappearing, many aquatic species also evaporated.
In the opposite direction, plants on the ground cannot make a replacement due to rising temperatures. As a result, the oxygen in the air will be severely reduced.
Besides, because water also plays the role of submerging and absorbing CO2 from the atmosphere, when it disappears, the concentration of CO2 in the atmosphere also increases. This contributes to accelerating the process of global warming, turning this place into hell.
The displacement between water and land will certainly affect the existing life on our planet. Temperatures increase, oxygen decreases, CO2 increases sharply, all making life on Earth more difficult than ever. Even so, it is likely that there will still be creatures that can survive, as long as they have to change themselves to survive.
In general, most species of animals today will fall into extinction. Herbivores will go first because the plants disappear, then the carnivores will follow. In such conditions, only cold-blooded animals (thermomorphs) – such as reptiles (snakes, lizards) and amphibians (frogs…) can survive.
It’s also easy to understand. When the natural land area expands to more than 200%, we will have too much land to move. Road transport also becomes easier because very few places are separated by the sea.
In contrast, maritime traffic will be quite miserable. This directly affects countries that depend on seafood exports.
Water is the source of life. When water becomes scarce, nations will have to fight for the amount of water they can possess, and this will lead to all-out war on a global scale.
Although Mount Everest is located at the highest place in the world, but considering the height from foot to top, it still has to lose to Mauna Kea. This mountain is 10,000m high, but the problem is that the body of the mountain has been submerged in sea water.
So when water and land swap places, Everest will lie under water, while Mauna Kea rises, becoming the tallest mountain in the world.