How much longer will the Earth be habitable

Question

How much longer will the Earth be habitable

Answer 1

Well, it is hard to say. If Global Warming can be controlled, if an asteroid doesn´t hit us, then our world could survive thousands of years. But if global warming can´t be controlled I would give the Earth some 500 years from now. An asteroid that can wipe us has a low probability so I wouldn´t worry about that.  

Answer 2

In terms of the sun entering it's Red Giant phase, 3-5 billion years.  

Answer 3

depends how quick we destroy it. if we keep going at this rate, only a few hundred years more

Answer 4

7 years 2 weeks 4 hours 36 minutes and 8 seconds.

Don't ask how I know but I do.

Answer 5

I'm an optimistic person sometimes so i'm going to say 10 years maybe 20 years then can we say run away greenhouse effect, s.p.f. 1000 for 5 minutes exposure to the sun.

I could be wrong of course my only knowledge on this subject is watching the movie "The 11th hour" and seeing with my own eyes how bad things have become.

Answer 6

Scientists estimate that the Earth will be habitable for another 2 billion years or so.

As the sun ages, it will slowly become warmer and within about 2 billion years the Earth's surface will be warm enough that the oceans will evaporate.

Answer 7

For humans and other large animals, it depends on how fast we destroy the environment. I fully believe that, although it's bad now, we have the technology and the desire to reverse global warming if we start soon.

For other forms of life, or life in general, the absolute maximum is roughly 500 million years. The Sun is *slowly* getting hotter. As it converts more of its Hydrogen into Helium, the changing composition is increasing its luminosity (the amount of energy a body radiates per unit time). Clearly, the more luminous the Sun is, the more sunlight, and therefore heat, reaches the Earth. In about 500 million years the luminosity will have increased so much that liquid water won't be sustainable on Earth. Plants and animals will die, the oceans will evaporate away, the ground will be hot enough to melt certain metals. Even single-celled organisms like bacteria will find it difficult to continue living here.

And, of course, if some organisms manage to survive this heat, nothing, no matter how evolved, will survive the Sun's Red Giant Phase, which should begin in about 5 billion years.

Answer 8

A couple more hundred thousand years I think.

Answer 9

It really depends. There are a thousand catastrophes that could render the Earth uninhabitable (for humans, at least) ranging from a meteor strike to global warming. If against all odds, none of that happens the Earth will be uninhabitable when the sun becomes a red giant (I think that's about 5 billion years).