Scientists predicted when Earth will become uninhabitable

Researchers from the University of Bristol have published a study in Nature Geoscience discussing the fate of Earth 250 million years from now. According to their findings, our planet will become nearly uninhabitable for mammals, including humans. The primary cause is the formation of a new supercontinent named Pangaea Ultima.

What is Pangaea Ultima?

The name of the new supercontinent, Pangaea Ultima, refers to the ancient supercontinent Pangaea, which existed over 200 million years ago. The unification of continents will occur due to the continuous movement of tectonic plates. According to scientists' calculations, Eurasia and Africa will merge, compressing the Arabian Peninsula. Subsequently, the unified landmass will collide with the Americas, causing the Atlantic Ocean to almost disappear, transforming into two small seas. Researchers also predict that Madagascar will end up between Africa and South America, while the Indian Ocean will vanish entirely. This movement of continents will drastically alter the planet’s climate conditions.

Climate Changes on Pangaea Ultima

Forecasts suggest that the climate of the new supercontinent will be extremely hostile to life. The central regions of Pangaea Ultima will turn into arid, lifeless deserts with temperatures ranging from 40 to 50 degrees Celsius, and in some areas, up to 70 degrees. These extreme conditions will be caused by:

• Distance from oceans: Without the cooling and humidifying influence of oceans, central regions will suffer from scorching heat.
• Increased solar activity: A 2.5% rise in solar activity will further heat the planet’s surface.
• Heightened volcanic activity: The merging of continents will trigger volcanic eruptions, increasing atmospheric carbon dioxide levels and intensifying the greenhouse effect.

Habitable Zones — Only 8–16% of Earth’s Surface

Scientists predict that just 8–16% of Earth’s surface will remain suitable for mammalian life. Habitable zones will be concentrated in coastal and polar areas, where milder temperatures will persist. The interior regions of the new supercontinent will consist of deserts with extremely low rainfall and almost no fresh water.

Mass Extinction

Professor Hannah Davies of the German Research Centre for Geosciences in Potsdam stated that such extreme conditions will inevitably lead to a mass extinction of mammals and other living organisms. Even in coastal and polar areas, which will remain relatively livable, survival will only be possible for a limited number of species capable of adapting to the new climatic realities.

What Awaits Humanity?

Scientists believe humanity will face two paths: adaptation to extreme conditions or relocation beyond Earth. Adapting to high temperatures, increased carbon dioxide levels, and a lack of fresh water will be exceptionally challenging. However, technological advancements might open new opportunities for colonizing other planets or artificially creating suitable living conditions.

Why Does This Matter?

Although 250 million years seems like a distant future, this research highlights the fragility of our planet and the necessity of treating natural resources with care. Scientists also remind us that ongoing climate changes today could accelerate adverse processes.

Conclusion

Pangaea Ultima is not just a scientific theory but an important reminder that Earth and life on it are subject to global changes. To keep our planet habitable for as long as possible, humanity must recognize the importance of sustainable development and continue exploring space for new horizons.