According to the theory of Plate Tectonics, the continental shelf of our planet is divided into plates that are moving continuously, due to convection currents from the Earth's mantle. The continuous movement of the continents will cause that within 250 million years, our planet does not look the same as it does today.
Millions of years ago, when seas and continents were formed, there was only one, Pangea. To this day, the movement that the plates have tends to separate the continents, so there will come a time when, after so much separation, they will rejoin. What will our planet be like in 250 million years?
The continents move
Business Insider has organized an animation, using projections from the adjunct professor Christopher Scotese of Northwestern University, to visualize millions of years of Earth in the future. And it seems like a very different place. It is possible that, after the continuous shifting of the plates, there will come a time when the continents return together as one and a supercontinent is formed.
Imagine a world where there are no continents or borders. All the countries of the world would coexist in the same portion of the Earth and only those who live on the sides could enjoy the coasts and the sea. Maritime transport would be more expensive to move inland and there would be a much higher percentage of people who could not walk on a beach so easily.
The continents are moving away from each other and others come together to form land masses that could they form a supercontinent. The final picture is of a world with an ocean filling most of one side, and land masses pushed together to form a single larger continent.
To see it better, you just have to watch the video. This is what our planet will be like in 250 million years: