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Earth's Period of Habitability Is Nearly Over

xp65 writes "Scientists at this year's XXVIIth General Assembly of the International Astronomical Union in Rio de Janeiro, Brazil agree that we do not yet know how ubiquitous or how fragile life is, but that: 'The Earth's period of habitability is nearly over on a cosmological timescale. In a half to one billion years the Sun will start to be too luminous and warm for water to exist in liquid form on Earth, leading to a runaway greenhouse effect in less than 2 billion years.' Other surprising claims from this conference: that the Sun may not be the ideal kind of star to nurture life, and that the Earth may not be the ideal size."

23 of 756 comments (clear)

  1. Re:Dang! Things were just getting fun by Kotoku · · Score: 5, Funny

    And to think, we were only 10-20 years away from Cold Fusion....

  2. So we still have... by jmerlin · · Score: 5, Insightful

    500 million years give or take a few hundred thousand to develop warp drive capability. Either we'll figure it out or we'll blow ourselves up.. I doubt it'll be the sun that kills off life on this planet.

    1. Re:So we still have... by itlurksbeneath · · Score: 5, Insightful

      Probably only big enough for the hair dressers and phone sanitizers, leaving the rest of the planet to die with bad hair and nasty ear infections.

      --
      Have you ever considered piracy? You'd make a wonderful Dread Pirate Roberts.
  3. This might be what Earth needs. by MindlessAutomata · · Score: 5, Funny

    Just think--an end to war, violence, depravity, poverty, oppression. Everyone will TRULY become equal then. Who knew the sun could be so... so... progressive?

  4. Linux on the desktop by tsa · · Score: 5, Funny

    So Linux on the desktop will really never happen! Pity.

    --

    -- Cheers!

  5. Ideally... by nomad-9 · · Score: 5, Insightful

    "that the Sun may not be the ideal kind of star to nurture life, and that the Earth may not be the ideal size."

    Homo sapiens may not be the ideal kind of advanced life form either. Otherwise it wouldn't destroy its own habitat on a global scale, nor cause avoidable mass extinction of other species. The good news? We don't really need to start worrying about the sun quitting on us. We'll be long gone before that, and I don't mean on another planet. I mean gone in a dinosaurial kind of way...

    1. Re:Ideally... by nizo · · Score: 5, Insightful

      I mean gone in a dinosaurial kind of way

      We'll evolve into birds?

    2. Re:Ideally... by squizzar · · Score: 5, Insightful

      Why are we _supposed_ to care about other species? Surely that we do in any way is just a trait of humanity. We could be like viruses, causing disease and death with no other intent than to reproduce. We could be the ultimate disease, destroying everything in our own self interest if that was our innate desire. The whole concept that we should care about other species or our impact on our environment is entirely of our own creation. To ascribe it to some higher goal is still to ascribe it to some higher human goal. To act like the reasons for preserving the environment and life on this planet are anything other than selfish is misguided. We want to preserve life on the earth for our own self interests: because we depend on it (and because we think it is cute). We want to preserve the environment because we depend on it (and because we think it is pretty). These are the only reasons to protect the world that make sense: because we want to protect ourselves and our children. This is a desire that has kept us going throughout millenia.

      Not everyone has the same balance of these desires, and hence not everyone is as concerned about protecting the environment as they are about having shiny toys. They may like the taste of fishes a bit more than seeing them swim. This leads to some inevitable conflict, and the large debates, and a lot of hair pulling from the people who have strong opinions (probably because of strong desires) on each side who find it unbelievable that everyone doesn't prioritise things in the same way they do.

      The attitude that we have some 'higher purpose' or that everything else is somehow more sacred than us is a strange to me. It's like people feel guilty about their own existence. I think that is has some of the same overtones of religion - that you are imperfect, you are inferior, you are sinful and therefore you should feel bad, and worship this, and promise not to do this list of things, promise to do this other list of things. The original sin becomes the carbon footprint. The objects of worship are trees and rocks and animals. You should forgo warmth and meat and convenience because they are an affront to your belief. And if you really get upset you should forget all respect for your fellow men and go and cause destruction in the name of your beliefs. Like all religions there are great benefits for many involved. And there is also the way it is used to control people, and to justify actions against fellow human beings, and often against everything you claim to stand for. The attitude of 'humans are the nastiest bunch of bastards on the planet, we should hate ourselves' is the first step of the crazy thinking towards things starting to get blown up (and peoples grandparents being exhumed). Destroy the infidel, for he does not share our beliefs as we are told to believe them.

      Back to the original point though - humans are just one more example of life. Another species. Another part of the universe. We are not here for some higher purpose. We exist, like all life, simply to exist. That we are conscious of this, that we can analyse it in this way makes us one the most fascinating creatures on the planet. But we are what we are, and if we fuck it up and destroy ourselves, we will know who to blame. It would be a great shame, but you're not going to get me to start hating myself because I accept my own and others fallibility. We may be able to achieve much more, but we may not. What will be will be, so live your life because you can, simply live, that is all.

  6. Re:Depending on who you believe by O'Nazareth · · Score: 5, Funny

    The book of Revelation.

  7. Re:Sooner than that... by FreeUser · · Score: 5, Informative

    I'm confused... how can 2012 be attributed to Christian myth even by the most loose of interpretations?

    It isn't. It's attributed to Mayan myth (and its a fundamental change in the world, not necessarily the end of the world). But you get some confused people who think that's "another sign" of the last days, and that Jesus/the Apacalypse/what have you is coming then.

    Totally illogical, not to mention heretical by their own belief system, but that doesn't seem to slow them down any.

    --
    The Future of Human Evolution: Autonomy
  8. Re:Dang! Things were just getting fun by inamorty · · Score: 5, Funny

    Wooosh.*

    *Not the sound of the atmosphere evaporating.

  9. Re:Depending on who you believe by haifastudent · · Score: 5, Funny

    I expect this basement to stay nice and cool (read: inhabitable) so long as my parents keep paying the rent.

    --
    Thank for reading to the sig. You may stop reading now. It is safe. There is no more content. Why are you still reading?
  10. Rubbish, of course it is. by GrahamCox · · Score: 5, Insightful

    the Sun may not be the ideal kind of star to nurture life, and that the Earth may not be the ideal size

    Since life evolved to suit the conditions, this statement is silly. The Sun and the Earth are perfect for life as it is found in the Sun/Earth system.

  11. Re:Depending on who you believe by Hal_Porter · · Score: 5, Funny

    If I was God here's how I'd do things

    The Bible would have performance targets - e.g. colonise the moon and so on. Once those were achieved I'd just change them retroactively so humans thought they had to do say the moon and mars. Basically every time anyone picked the book up it would tell them that God thinks that as a species we're a day late and a dollar short and he's sick of it. I'd also explain that the dinosaurs didn't meet their targets either and even humans should be able to deduce the consequences of that.

    Oh and by the way, FORE!

    --
    echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
  12. Re:Dang! Things were just getting fun by Shakrai · · Score: 5, Insightful

    Humans will be extinct long before that, evolved to become some other species.

    Why do you say that? Species tend to evolve because the new form offers advantages/adaptions that enable them to better survive in the current environment. In the absence of this pressure there isn't much incentive to evolve. Sharks and crocodiles are two examples that come to mind -- they haven't changed much in the last hundred million years or so. You could go back to the time of the dinosaurs and they would still be recognizable.

    What pressure does homo sapiens to evolve, given that our technological abilities largely shield us from the pressures of our environment?

    --
    I want peace on earth and goodwill toward man.
    We are the United States Government! We don't do that sort of thing.
  13. Joke by bmomjian · · Score: 5, Funny

    World Ends Tomorrow: Women, Minorities Hardest Hit (old journalism joke)

  14. Re:Dang! Things were just getting fun by YttriumOxide · · Score: 5, Insightful

    You may be a troll and have hopeless grammar, but nevertheless as a "hippy treehugger" myself, I absolutely agree with you. Being a greenie and being OPPOSED to nuclear energy has always struck me as complete madness.

    Save the planet, use clean nuclear energy!

    --
    My book about LSD and Self-Discovery
    Also on facebook as: DroppingAcidDaleBewan
  15. Re:Dang! Things were just getting fun by Anonymous Coward · · Score: 5, Funny

    The purpose of this whole post was to tell us about your girlfriends vagina, wasn't it?

  16. Re:Dang! Things were just getting fun by ekgringo · · Score: 5, Insightful

    * 2100 - humans loose ability to read/write

    Mod +5 Ironic

  17. Re:Dang! Things were just getting fun by Anonymous Coward · · Score: 5, Funny

    My girlfriend's vagina is so tight that there's no way she could give birth naturally,

    That will all change after she goes through puberty.

  18. Re:Dang! Things were just getting fun by Xiterion · · Score: 5, Informative

    and we still haven't found a method to either safely store it away or make it less hazardous.

    Even though it's been said 1e6 times before on /. and I'm sure someone will say it elsewhere, bullshit.

  19. Re:Dang! Things were just getting fun by loshwomp · · Score: 5, Informative

    You realize that nuclear power is the opposite of clean energy? It creates highly dangerous/toxic waste that's dangerous for thousands

    Please stop spreading this dangerous misinformation. Do you even know how much waste you're talking about? Imagine a cylinder 10mm in diameter. A 5mm slice of that cylinder will supply your energy needs for a year. The rest of the world stores the byproducts safely on site, and there's no reason we can't do the same. Future reactor designs will burn the fuel more completely resulting in less (and safer) remaining waste.

    Burning coal (the only practical alternative to nuclear) releases far more radiation into the atmosphere than nuclear power ever has or will. And don't even get me started on the mercury poisoning of lakes, etc.

  20. Re:Dang! Things were just getting fun by shadwstalkr · · Score: 5, Informative

    The US has accumulated that much waste because it is illegal in the US to reprocess that waste into more uranium pellets. Other countries with active nuclear programs recycle their waste, drastically reducing the volume and half-life of the net waste output.