The End of the Earth, how do you think it will happen? Options

[Frostedflakes616]

There are many theories on how the world will end for us, on how the Earth and us with it will be destroyed.

First Theory:
As you all know of the Big Bang, which is believed to be the start of the universe. Some say that the universe may go back to that little sized pearl and we will be destroyed.

Second Theory:
If you did not learn this in school, the sun is a star. And all stars have life and death. Their death is when they explode becoming a nova/supernova. Which means the sun will have one as well. They say eventually, the sun will end life and explode, destroying the Earth.

These are the two main theories that I know about. What do you think? Do you think the universe will go back into the pearl sized amount of gas? Or will the sun blow us up?

You decide. If you know of another theory, feel free to mention it.

My Opinion:
The first theory in my opinion is highly unlikely. I don't believe the whole universe will shrink back. If anything, the universe will keep expanding forever. I do believe in the second theory, but that will probably not last for another couple million or even billion years. If not that, we'll be destroyed by a meteor or colide with another planet, both seem to be unlikely. So if we don't get destoyed by another planet (by collision) or by a meteor, the sun will blow up on us.

[AngryBaby]

i didnt say it would protect us from gama ray bursts. i said a gama ray burst would obliterate the ozone layer. not gradually, right then and there. like a nuclear bomb effect. it wouldnt necessarily destroy the planet because our nearest star isnt close enough for that to happen. so humanity would die because of the mere effects. but thats not necessarily the earth i guess though.

and it doesnt matter if the ozone layer even is repairing itself. from global warming, the tempature will rise at pretty concerning speeds just because of the Co2 in the air already, not necessarily only because of UV rays.

The danger is that global warming may become self-sustaining, if it has not done so already. The melting of the Arctic and Antarctic ice caps reduces the fraction of solar energy reflected back into space, and so increases the temperature further. Climate change may kill off the Amazon and other rain forests, and so eliminate once one of the main ways in which carbon dioxide is removed from the atmosphere.



The rise in sea temperature may trigger the release of large quantities of carbon dioxide, trapped as hydrides on the ocean floor. Both these phenomena would increase the greenhouse effect, and so global warming further. We have to reverse global warming urgently, if we still can.