10 Biggest Threats That Could Wipe Out Life On Earth

10 Biggest Threats That Could Wipe Out Life On Earth

6. Mega tsunamis.

Giant Tsunami
Image Source: YouTube

Tsunamis are created by earthquakes that occur on the ocean bed while Mega tsunamis are created when a large material falls into a body of water. Mega tsunamis are considerably larger than regular tsunamis. The largest one Earth has ever seen occurred 66 million years ago and created a 3.1 mile high wave. The object that led to the creation of this Mega tsunami is believed to be the asteroid that wiped out the entire dinosaur population. The destructive and deadly disaster within the last decade has claimed the lives of more than 300,000 people. Scientists believe that it could still happen where a powerful earthquake or a gigantic asteroid could lead to the doom of humanity.




7. A massive solar flare from the red giant.

Solar flare
Wikimedia/CCO

The Sun is the central and the most vital part in the existence of humanity as well as any living being on Earth. The Sun has existed long before us and will be here long after we are gone. The Sun produces light and heat by the process of nuclear fusion in its core system. Scientists estimate that the Sun will be capable of providing us with light and energy for another 4.5 – 5.5 billion years, before its supply of hydrogen and helium becomes depleted. Just over 4.5 billion years old, our Sun is halfway through its life cycle. In a few billion years, the Sun will produce massive amounts of heat and light. This will create an uninhabitable place to live on Earth. Once it finishes its life cycle, the Sun will become a red giant that will engulf everything in its path – including Earth.

8. A rogue planet that could collide with Earth.

Earth on collision with rogue planet
jpl.nasa/CCO

A research conducted by the UCLA describes a collision that took place 4.5 million years ago. Moon, which is Earth’s natural satellite was formed because of such a collision with a forming planet. Known as Theia, the planet is believed to have collided with Earth at a 45 degree angle, just scraping it. New reports in the UCLA journal Science indicate that such a collision is possible in the near future. Rock samples were brought back to Earth from the Moon by the Apollo 12, 15 and 17 missions. The samples from the Moon as well as six volcanic rocks from the Earth’s mantle were subjected to a series of tests to determine their chemical signatures. German scientists in 2014 reported that the Moon had its own unique ratio of oxygen isotopes, not far different from Earth’s. The chemical signature indicated that the Moon was formed due to a head on collision of Earth with Theia.





Throughout recent years, several scientists have come forward suggesting that the idea of a direct collision with another planet is possible. Earth as we know it moves roughly 1.3 million miles per hour. So, such theories regarding collision with another planet might not be false after all.

9. Vacuum sucks up the universe.

Vacuum sucks everything on its path
Wikimedia/CCO

Electron and low intensity hadron accelerators or particle accelerators are machines that accelerate elementary particles, such as electrons or protons, to very high energies. The complex machine could trigger a reaction that adversely changes all matters and laws of physics. The universe contains a true vacuum. Particle accelerators have the potential to disturb this and cause it to suck the whole universe into emptiness.




10. Food shortages and mass starvation.

Forest fire
Wikimedia/Public Domain

Currently there are 7.5 billion people on Earth and by 2050, this figure is going to be 9.6 billion – according to the United Nations. There are still people living in parts of the world who are starving and can’t even receive basic necessities. At the current rate of growth in population, food production has to increase by 70% within the next 30 years. The problem humanity faces is with the required land for cultivating crops in such quantities. Since 1950, the agricultural field has been using fossil fuels to pace production in order to meet the demands. Today, the world is running low on fossil fuels and most cultivable land is affected by soil erosion.

Global warming also plays a vital role in this case. The sudden change in climate affects the crops since they are not capable of quickly adapting to it. Experts believe that by 2020, the effects of this will be felt worldwide. By 2050, most of the developing countries will be severely affected by food shortages, riots, political instability and mass pandemonium.




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