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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."

4 of 756 comments (clear)

  1. 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
  2. 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.

  3. 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.

  4. 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.