Slashdot Mirror


What If We Lost the Sky?

HughPickens.com (3830033) writes "Anna North writes in the NYT that a report released last week by the National Research Council calls for research into reversing climate change through a process called albedo modification: reflecting sunlight away from earth by, for instance, spraying aerosols into the atmosphere. But such a process could, some say, change the appearance of the sky — and that in turn could affect everything from our physical health to the way we see ourselves. "You'd get whiter skies. People wouldn't have blue skies anymore." says Alan Robock. "Astronomers wouldn't be happy, because you'd have a cloud up there permanently. It'd be hard to see the Milky Way anymore."

According to Dacher Keltner, a psychology professor at the University of California, losing the night sky would have big consequences. "When you go outside, and you walk in a beautiful setting, and you just feel not only uplifted but you just feel stronger. There's clearly a neurophysiological basis for that," says Keltner, adding that looking up at a starry sky provides "almost a prototypical awe experience," an opportunity to feel "that you are small and modest and part of something vast." If we lose the night sky "we lose something precious and sacred." "We're finding in our lab that the experience of awe gets you to feel connected to something larger than yourself, see the humanity in other people," says Paul K. Piff. "In many ways it's kind of an antidote to narcissism." And the sky is one of the few sources of that experience that's available to almost everybody: "Not everyone has access to the ocean or giant trees, or the Grand Canyon, but we certainly all live beneath the night sky."

Alan Robock says one possible upside of adding aerosols could be beautiful red and yellow sunsets as "the yellow and red colors reflect off the bottom of this cloud." Robock recommends more research into albedo modification: "If people ever are tempted to do this, I want them to have a lot of information about what the potential benefits and risks would be so they can make an informed decision. Dr. Abdalati says deploying something like albedo modification is a last-ditch effort. "We've gotten ourselves into a climate mess. The fact that we're even talking about these kinds of things is indicative of that."

10 of 421 comments (clear)

  1. on starting with smaller-scale albedo modification by FooAtWFU · · Score: 5, Insightful

    Developed areas currently cover around 1% of Earth's surface already. Switching to more-reflective materials -- asphalt mixed with recycled glass, roofs with light-colored shingles instead of dark, Mediterranean-style exterior color schemes -- not only increases albedo but can mitigate heat-island effects and reduce the need to expend energy on cooling.

    --
    The World Wide Web is dying. Soon, we shall have only the Internet.
  2. Don't fucking do it. by Anonymous Coward · · Score: 5, Insightful

    I know we think we're all-knowing, or at least smarter than mother nature. But we just shouldn't be fucking around trying to fix something by doing something more. History is full of humans trying to fix one invasive species by introducing another to 'control' the first, and then winding up even worse off. Fix the cause of the problem rather than trying to chase around the symptoms. Or else we're all fucked.

    1. Re:Don't fucking do it. by war4peace · · Score: 5, Insightful

      Some questions:
      1. How do you plan to decrease that amount?
      2. How do you know how long you need to wait to realize you've overdone it? Suppose the temperature rises 0.5 degrees per year, so you spit some substance out. Next year there's no reduction of the trend, so you do what? Wait to see if that goes down next year or spit some more substance? Do you wait a decade? A century?

      These global mechanisms are poorly understood and overly complex as it is, the last thing I'd want is meddling with it. It's like a 2 year old shoving both hands into a running car engine to make it sound more like the lullaby his mom's singing to him every night.

      --
      ...gis sdrawkcab (usually not responding to ACs; don't bother posting as AC)
  3. Changing for you maybe by cupantae · · Score: 5, Informative

    "You'd get whiter skies. People wouldn't have blue skies anymore."

    Living in Ireland, the sky is white or grey about half the time. You get over it.

    --
    --
    1. Re:Changing for you maybe by Rei · · Score: 5, Informative

      Yeah, a lot of people already live in the sort of environments that they're warning against. This line got me:

      And the sky is one of the few sources of that experience that's available to almost everybody

      Is that a joke? People's ability to see the night sky varies vastly depending on where they are. In big metro area, all you can see are the brightest of stars. There's little to no majesty to it. It's when you get out into the deep, deep countryside and look up at the uncountable multitude above you that you feel little and insignificant compared to the cosmos around you. There's nothing universal about ready access to a dark sky. And it's getting rarer and rarer.

      --
      We gotta go to a crappy town where I'm a hero.
  4. Burn the land by pr0t0 · · Score: 5, Funny

    Burn the land, boil the sea; you can't take the sky from me.

    --
    I'm sorry, but your opinion seems to be wrong.
  5. Cripes, what could possibly go wrong? by L.+J.+Beauregard · · Score: 5, Insightful

    What effects might the aerosols have?

    What if we use too much? Do we really want to risk a snowball Earth?

    Do we really want to risk anything on such a large scale just because some yahoo wants to roll coal?

    Can no one see that not messing with the climate any more than we have to is the conservative position, at least as "conservative" is properly defined?

    --
    Ooh, moderator points! Five more idjits go to Minus One Hell!
    Delendae sunt RIAA, MPAA et Windoze
  6. Nature... by Half-pint+HAL · · Score: 5, Insightful

    Why does TFA focus on neurophysiological handwavery rather than clear and obvious physical concerns? The loss of light at night would be a major hassle to a lot of people, and would result in increased need for electric lighting. Some nocturnal animals would likely be seriously inconvenienced, messing up the ecosystem. But the biggie -- the real biggie -- Plants Eat Light. Crop yields would decrease the world over. Still want to mess about with aerosols and the atmosphere...?

    --
    Got them moderator blues I blieve I walk out the do', With these mod-points I been gettin', I 'most never post no mo'
  7. Re:on starting with smaller-scale albedo modificat by Anonymous Coward · · Score: 5, Interesting

    That sounds like a practical, reasonable plan that can be done with 19th century solutions. In other words, gay.

    We're going to need a solution, preferably more than one, that will require 3D printers, private space, and dozens of universities, think thanks, and tax-funded "private" companies to rob you blind.

    Welcome to the 21st century, don't forget to pay your rent.

  8. Re:Highlander III did it already... by stjobe · · Score: 5, Insightful

    To quote the (only) movie: "There can be only one".

    I refuse to acknowledge that the fantastic movie Highlander ever has had any sequels, prequels, tv shows, a franchise or anything else.

    Just that one movie, with its marvellous soundtrack and the mystery of who the immortals were, where they came from, and why there could be only one.

    None of this "they came from space. No, the future!" malarkey. It is and was a mystery, never explained.

    --
    "Total destruction the only solution" - Bob Marley