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Earth Approaching Tipping Point Say Scientists

Hugh Pickens writes "The UC Berkeley News Center reports that a prestigious group of 22 internationally known scientists from around the world is warning that population growth, widespread destruction of natural ecosystems, and climate change may be driving Earth toward an irreversible change in the biosphere, a planet-wide tipping point that would have destructive consequences absent adequate preparation and mitigation. 'It really will be a new world, biologically, at that point,' warns lead author Anthony Barnosky. 'The data suggests that there will be a reduction in biodiversity and severe impacts on much of what we depend on to sustain our quality of life, including, for example, fisheries, agriculture, forest products and clean water. This could happen within just a few generations.' The authors note that studies of small-scale ecosystems show that once 50-90 percent of an area has been altered, the entire ecosystem tips irreversibly into a state far different from the original, in terms of the mix of plant and animal species and their interactions. Humans have already converted about 43 percent of the ice-free land surface of the planet to uses like raising crops and livestock and building cities. This situation typically is accompanied by species extinctions and a loss of biodiversity. 'My view is that humanity is at a crossroads now, where we have to make an active choice,' says Barnosky. 'One choice is to acknowledge these issues and potential consequences and try to guide the future (in a way we want to). The other choice is just to throw up our hands and say, 'Let's just go on as usual and see what happens.'"

13 of 759 comments (clear)

  1. This Announcement Hot on Heels of Bilderbergers by Jeremiah+Cornelius · · Score: 5, Funny

    Just coincidence? I think not...

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
    1. Re:This Announcement Hot on Heels of Bilderbergers by Anonymous Coward · · Score: 0, Funny

      World Ending. News at 11.

    2. Re:This Announcement Hot on Heels of Bilderbergers by Jeremiah+Cornelius · · Score: 4, Funny

      Yeah. But then, I wouldn't have gotten Fr1st Psot.

      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
    3. Re:This Announcement Hot on Heels of Bilderbergers by Anonymous Coward · · Score: 5, Funny

      Given my downmods, no. :-)

      But /. is a game with elaborate scoring - and Karma is not the sole scale for measuring this.

      An interesting game -- the only winning move is not to register.

    4. Re:This Announcement Hot on Heels of Bilderbergers by Phil06 · · Score: 5, Funny

      Whatever happens, it will become history, and you can't change history.

      --
      "...and yet, I blame society" Duke - Repo Man
    5. Re:This Announcement Hot on Heels of Bilderbergers by Dahamma · · Score: 3, Funny

      As much as I agree that longer term planning is an important (and undervalued) concern in many engineering designs, I think taking into account the heat death of the sun might be over-engineering just a bit.

    6. Re:This Announcement Hot on Heels of Bilderbergers by Capsaicin · · Score: 3, Funny

      Oh you whacky mathematicians ... always manipulating the numbers to serve your argument!

      --
      Better to be despised for too anxious apprehensions, than ruined by too confident a security. --Edmund Burke
    7. Re:This Announcement Hot on Heels of Bilderbergers by WillDraven · · Score: 5, Funny

      We need to energize that one percent to invest in its own future by creating an explosion of sustainable technologies and new industries that serve life and living as opposed to undermining life for billions while enriching dozens. Its time to turn things on their heads. Its time to kill the sacred cows, and shatter the broken paradigms that have been shaping this slow motion catastrophe for the last 30 years. Its time to put an end to business as usual, and making the kinds of changes that will ultimately serve the future.

      BINGO! What do I win?

      (Sorry, I couldn't resist. I agree with you for the most part, but that was awfully heavy on the buzz-words.)

      --
      This is my sig. There are many like it but this one is mine.
  2. Read the full article? by kasper_souren · · Score: 5, Funny

    "Instant access to this article: $32" I'd say were doomed.

  3. Well, I'm doing my part by epp_b · · Score: 4, Funny

    I'm making the humanitarian sacrifice and choosing not to mate... yeah, choosing, that's it.

  4. Not the Earth by Corson · · Score: 4, Funny

    It's mankind. The Earth couldn't care less.

  5. Re:Yeah by Anarchduke · · Score: 3, Funny

    Suicide isn't the answer. After all, you only remove 1 human from the equation. What you really need is a couple of really good efforts at genocide. This is a crisis, its time to think big.

    --
    who prays for Satan? Who in 18 centuries has had the humanity to pray for the 1 sinner that needed it most? ~Mark Twain
  6. No No No by Shivetya · · Score: 3, Funny

    When it is described as that it removes all obligation of those making the declaration from having to be right.

    As in, they won't be around to admit they were wrong. Sounds like typical consultant work.

    --
    * Winners compare their achievements to their goals, losers compare theirs to that of others.