Life originated on Earth about 3, 5 billion years ago, very fragile, and death is a normal part of its history.
4 billion species that have existed on the planet, 99% gone. Over the last 500 million years the mass extinction happened five times: in these times, for reasons that are not fully understood by scientists, disappeared more than 75% of the species.
According to scientists, may soon happen sixth extinction. Science predicts 10 possible scenarios for the extinction of humanity, and perhaps the Earth itself.
Many of us eat caffeine and nicotine, and other substances that elevate mood, improve attention, increase the activity. When will come a time that we will no longer be able to live without them? Perhaps this will not lead to sudden catastrophe, but will force humanity to gradually disappear.
2. False vacuum
If the Earth exists in a region of space called a false vacuum, it (this region) may at any time go to a lower energy state. Wave energy will be covered by us at the speed of light and will be torn to atoms.
3. Strange drops-twins
In quantum mechanics there is a hypothesis about the "straplike" - objects that can turn in your copy of any particle. Within a few hours the whole world could become a shapeless mass "strange drops".
4. The end of time
The laws of physics permit time. In 2007, the Spanish scientists have proposed an alternative explanation of the mysterious dark energy, which accounts for 75% of the mass of the Universe and acts as a kind of anti-gravity, pushing galaxies apart from each other. According to them, we observe the effect of time dilation as it "flows" from the Universe.
Geologists fear that the eruption of the volcano on La Palma in the Canary Islands is able to "shoot" in the Atlantic ocean, a piece of rock, which is twice the volume of the Isle of man.
There will be a wave of km altitude, which will move with the speed of a jet plane. Half of the world's largest cities will be under water for a few minutes.
6. The pole shift
Pole of the Earth is periodically reversed. In this transitional period of the planet's magnetic field that protects us from harmful radiation weakens or disappears. Last time it was almost 780 thousand years ago.
7. Rays from space
Dying, supermassive star shoots two beams of high-energy gamma radiation. It is able to break the atmosphere and destroy the ozone layer, which came under the "hot hand".
8. Black hole
A black hole can tear the Earth to atoms by the force of attraction. It is able to draw us to himself, being for billions of kilometers from the Solar system, and to tear the planet from the sun, the source of life.
9. Predatory plants and viruses
Invasive species of plants, animals and microorganisms capable of destroying an ecosystem that has no protection against them. They have become a big problem for world agriculture.
Once biological and technological innovations will bring people to a level where they will not be like us, their ancestors.
"Posthumans" will be half the computers or even will exist only in the form of digital information transmitted in ultrafast networks and live seemingly forever after the disintegration of the physical body. Then the system will fail.
Scientists also note that the average lifespan of mammals is 2, 2 million years.
Homo sapiens appeared only 200 thousand years ago, and the genus Homo is about 1, 8 million Scientists without a doubt say that we will die out, because it is a law of biology.
According to the British astronomer Martin Rees, the chances of human civilization to survive after 2100 does not exceed 50%, with easy access to the technologies that cause global consequences.
The nature of the planet now faces the greatest threat of destruction from the time of the death of the dinosaurs 65 million years ago", says the UN report, presented last year at the meeting of the conference of the parties to the Convention on biological diversity (COP-10).
The report stresses the importance of taking urgent measures to protect and restore ecosystems - forests, rivers, coral reefs and oceans, is vital for all mankind.
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