Can you think of as many disasters that could that could destroy all life on Earth or the Earth itself?

Question

Can you think of as many disasters that could that could destroy all life on Earth or the Earth itself?

Answer 1

The Great Tribulation

Answer 2

You've heard much speculation by the other answerers. There is one disaster scenario that isn't speculation, but is certain to occur. In 1900, about 3 trillion barrels of oil were buried in underground petroleum deposits. In 1930, humans began using them to power industry, agriculture, homes, automobiles, and transport vehicles for consumer goods of all kinds. Fossil fuels were also used, of course, to fight wars.

In 2004, we reached the halfway point. We had found and used 1.5 trillion barrels of that oil. That first half was the purest half, the most useful half, the half that was the easiest to extract from the ground. Most of it was under pressure, for one thing, and it gushed upward once the wells had been drilled, no pumping required. Furthermore, it was the lightest and sweetest crude oil from the most easily accessible oil fields.

That high-quality stuff is gone. The remaining half of Earth's oil deposits are dirtier, needing more processing, and located in places that are difficult to reach. And it must be pumped up to be extracted because the earlier removal of the lighter stuff took the pressure off the deposit.

Today there are more uses for oil, and there are more countries using oil, than was true in the past. China, in particular, has ramped up its use of oil so much that it is now the #1 oil consumer, rather than the United States. That means we will use up the REACHABLE PART of the 2nd half of the oil much more rapidly than we used up the first half of those deposits.

I say "the reachable part" because there will come a time when it will take as much energy as it contained in a barrel of oil to pump another barrel of oil, at which moment you will gain no net energy by pumping any more oil. There will still be oil in the ground at that point, but there won't be any use in trying to get it out.

In other words, first the price of fuels will rise (even more than they have already risen). Next, the prices of everything else will also rise, since fuels made from oil are used in their manufacture or in their distribution. Next, there will come blackouts and shortages of fuel for vehicles and fuels for winter heating. After that, the transportation of consumer goods will break down. At some point, mechanized agriculture will fail, and the world will be thrown back on hand-tool agriculture, perhaps augmented by animal power, as it was in medieval times.

The food production of the world will decline by 90 percent or more. Which means that the human population will die off by a similar percentage. This is not speculation. It is certain to happen. It will happen within the 21st century. It may happen in your lifetime. Buckle your seat belts! It's going to be a rough ride back to the Stone Age.

Death to the world, the food is gone!

The Earth becomes a grave!

The fearful faint of heart

Can see approaching doom.

Let heaven and nature wail,

As people try and fail

To stay fed and warm and out of jail.

Answer 3

Earth and solar system will run into a huge cloud of Antimatter and all matter will be anihilated into enrgy!

Huge asteroid will hit earth and half of the life on earth will be finished

Ebola like virus will vipe out large population

Nuclear winter released by mistaken atomic wae will kill 3billion peple

Remaining people will kill each other for food and drinking water

That will be the end!!!!!!!

Answer 4

giant asteroid, nuclear war, super plague, global warming, kittens with guns, aliens, starvation, pollution, puppy cannons, and zombie apocalypse

Answer 5

You just asked this an hour ago.  I'm sticking with my answers:

1.Only a black hole could destroy the earth. Even a collision with a mars sized planet failed at that job.

2. A nearby supernova could sterilize the planet, but not destroy it

3. A gamma ray burster could do the same

4. An asteroid impact of sufficient size could destroy ALMOST all life. extremeophile bacteria would continue to exist even if the entire surface was turned into oceans of magma

5. A disease could kill most people. Biologically it would be very difficult to imagine a disease that could kill everyone due to genetic variability. Perhaps a biowarfare attack using multiple genetically enhanced bacteria or viruses could do the trick. Still unlikely.

6. Nuclear War would make the northern hemisphere toast. But there would be areas in the southern hemisphere that would survive. The wind systems are separate although there is some overlap. Unless either the US or Russia targeted their weapons in a grid pattern in attempt to destroy all life. That isn't likely. Major targets may have ten or twenty or more nuclear weapons tasked to them.

7. A major flood basalt eruption would play h**l with the atmosphere and the oceans. These eruptions are credited with causing all but one of the roughly eight major mass extinction events in the history of earth. Only the KT was caused by another mechanism, but that was just a coup de grace. The Deccan Traps eruptions would have killed the dinosaurs just as dead as the Chicxulub asteroid.

8. A supervolcanic eruption could cause a volcanic winter that would last for centuries and doom almost the entire human race. Its happened once before: the Toba eruption about 75000 years ago.

9.  The current greenhouse warming could possibly tip the oceanic layer balance and a mass extinction could begin.  Although in truth a mass extinction is already in progress.  Just not humans yet.  

Answer 6

Haven't you already asked this question?

1. Asteroid/comet impact.

2. Nuclear war.

3. Artificial intelligence.

4. Massive epidemic brought on by a genetically engineered pathogen.

5. Extraterrestrial invasion.

6. Environmental catastrophe, pollution causing global warming and then global freezing.

7. Nanotechnology gone out of control.

8. A black hole getting too close to our solar system.

9. A very very large volcanic eruption.

10. A change in the tilt of the Earth's axis.

Another problem right now is overpopulation.

Answer 7

The Death Star.

Answer 8

Sure --- here are 10 ways to destroy the Earth--

http://www.livescience.com/technology/de...

Answer 9

alright...

a black hole

a gemaray burst

global warming

the sun dying

the universe dying

the world ending supposedly in 2012

a meteor coming 2 earth

the sun eating earth when it expands before dying 5 billion years

from now

war

ice melting from the polar ice caps

wild fires

another ice age

aliens invading

the earth's continental plates moving