Dang, I just moved into a new apartment too
The future lifespan of Earth’s oxygenated atmosphere
21–30 of 90 posts
Re: The future lifespan of Earth’s oxygenated atmosphere
#22We humans will be able to control everything on earth's climate if we survive even a couple thousand years from now assuming technological advances.
Re: The future lifespan of Earth’s oxygenated atmosphere
#23Interesting. Life emerged 4 billion years ago and the window of habitability for complex lifeforms will end in one more billion years. So terrestrial natural selection required 80% of the window of opprtunity to produce human intelligence. That's a tighter margin than I would have guessed.
Re: The future lifespan of Earth’s oxygenated atmosphere
#24We humans will be able to control everything on earth's climate if we survive even a couple thousand years from now assuming technological advances.
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Re: The future lifespan of Earth’s oxygenated atmosphere
#25We humans will be able to control everything on earth's climate if we survive even a couple thousand years from now assuming technological advances.
What makes you think that?
Re: The future lifespan of Earth’s oxygenated atmosphere
#26We humans will be able to control everything on earth's climate if we survive even a couple thousand years from now assuming technological advances.
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Re: The future lifespan of Earth’s oxygenated atmosphere
#27That's an incredibly long time, and there's no reason to assume our technology can't get better in that time (if we are around). Another solution is to move spaceship Earth: https://dwheeler.com/essays/move-spaceship-earth.html
Makes me think of http://www.infinityplus.co.uk/stories/england.htm
Re: The future lifespan of Earth’s oxygenated atmosphere
#28So basically there is only a limited window for life to kickstart from microbes to multi-cellular lifeforms to sapient beings and finally to spacefaring, terraforming civilisations.
Re: The future lifespan of Earth’s oxygenated atmosphere
#29Enough time to migrate to another planet.
It's literally enough time to even lift heavier elements from the Sun to extend it's stable life cycle by several billion years.
Another commenter suggested moving the planet and got down voted to oblivion but it's not at all a ridiculous suggestion in these kinds of time scales. You could place giant ion thrusters on the moon and set it in an orbit where tidal effects would nudge the Earth outwards over a few million years. This can be made subtle enough as to not even be noticeable to life on Earth.
Of course a cheaper solution is to just use a solar shade that can incrementally decrease it's opacity to compensate for the brightening sun but this would not be enough when the Sun transitions into it's red giant phase
Re: The future lifespan of Earth’s oxygenated atmosphere
#30I am not getting this kind of journalism. Guardianmag magazine article is a direct copy paste from https://phys.org/news/2021-03-simulations-earth-oxygen-rich-.... Yes, they cite that as a source (oddly enough, Guardianmag has not added web site address as a clickable link, why?). They didn't have any incentives to add some more details, anything, just copy paste.
It would be so great to learn some more details about the model, etc.