What the past can tell us about the future

Discussion in 'Environment' started by Chris, Jun 16, 2011.

  1. Chris
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    Chris Gold Member

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    Fifty-six million years ago, enough carbon leaked into the atmosphere to alter the climate and acidify the ocean. The same thing is happening now, much faster. But this time, we know what's going to happen, and it isn't pretty.

    Even the most extreme natural global warming episode of the last 65 million years can't hold a candle to what we're doing to the atmosphere now. If a new study of layered rock deposits from the Norwegian Arctic is correct, then we're releasing carbon dioxide 10 times faster than at any other time since the dinosaurs died out.

    The Paleocene-Eocene Thermal Maximum (PETM), is one of the best geo-historical examples of what a future super-greenhouse could be like. It happened about 56 million years ago, and although nobody knows exactly what triggered it, numerous studies show that carbon emissions were the main culprits--perhaps arising from various coal seams, limy organic ocean muds, and frozen methane ices. This, of course, was long before people appeared on Earth, so we had nothing to do with it. Instead, undersea volcanism might instead have started it by immolating carbon-rich marine deposits.

    What did the PETM do to the planet and its inhabitants? Carbon dioxide concentrations jumped as much as five times higher than those in our present atmosphere, adding at least 10°F to climates that were already much warmer than today and probably finishing off what little ice and snow may have whitened the polar regions in winter. The greenhouse gas surplus lingered for 150,000 to 200,000 years, and turned the deepest parts of the oceans into stagnant, acidified dead zones.

    What The Past Can Tell Us About A Future "Super-Greenhouse" World | Fast Company
     
  2. elvis
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    elvis BANNED Supporting Member

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    yawn.
     
  3. Quantum Windbag
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    Quantum Windbag Gold Member

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    There were people around 56 million years ago? Didn't you just post a thread talking about the potential of another ice age? Why does no one ever address the fact that all the models about AGW predict a corresponding rise in water vapor along with the rise in CO2? Why isn't water vapor increasing as predicted? Why has the last decade, despite seeing the largest increase in atmospheric CO2 ever recorded, had a relatively stable temperature over decades with much smaller increases in CO2?
     
    Last edited: Jun 16, 2011
  4. skookerasbil
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    skookerasbil Gold Member

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    Alarmism is gay.................

    Thankfully, has no traction anymore in America. Leave it to k00k liberals to snatch defeat from the jaws of victory. They just cant help themselves.............

    Every day they run out the boogeyman story, saying its right around the corner. You're always going to be able to scam the few who tend to the hysterical automatically, but a vast majority hear this shit anymore and say "meh"............which the proof of is the fact that climate legislation on 2011 is about as popular as The Ed Show on MSNBC!!!:up::fu::fu::fu::fu:



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    Last edited: Jun 16, 2011
  5. skookerasbil
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    skookerasbil Gold Member

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