CO2 at the highest level in 2.1 million years

Discussion in 'Environment' started by Chris, May 29, 2011.

  1. Chris
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    Chris Gold Member

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    The study, in the June 19 issue of the journal Science, is the latest to rule out a drop in CO2as the cause for earth's ice ages growing longer and more intense some 850,000 years ago. But it also confirms many researchers' suspicion that higher carbon dioxide levels coincided with warmer intervals during the study period.

    The authors show that peak CO2 levels over the last 2.1 million years averaged only 280 parts per million; but today, CO2 is at 385 parts per million, or 38% higher.

    Carbon Dioxide Higher Today Than Last 2.1 Million Years
     
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  2. RWatt
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    RWatt Member

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  3. Chris
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    Chris Gold Member

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    The low carbon dioxide levels outlined by the study through the last 2.1 million years make modern day levels, caused by industrialization, seem even more anomalous, says Richard Alley, a glaciologist at Pennsylvania State University, who was not involved in the research.

    "We know from looking at much older climate records that large and rapid increase in CO2 in the past, (about 55 million years ago) caused large extinction in bottom-dwelling ocean creatures, and dissolved a lot of shells as the ocean became acidic," he said. "We're heading in that direction now."

    Carbon Dioxide Higher Today Than Last 2.1 Million Years
     
  4. Annie
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    Annie Diamond Member

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    I'd be more interested in the numbers from say the past 300 years or so. Just before and including all the industrialization period.
     
  5. Big Fitz
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    Big Fitz User Quit *****

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    I wanna know who RWatt's a sock puppet for. I have a suspicion but that's all.
     
  6. RetiredGySgt
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    RetiredGySgt Platinum Member

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    Ok, lets use a little deductive reasoning shall we?

    If the CO2 levels are the highest in 15 million years ( or 2.1 million years) has the temperature been higher then today? If so then why blame CO2? Just curious.
     
  7. whitehall
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    whitehall Gold Member

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    You gotta hand it to the fools who make a living from government grants. A degree in beer drinking and liberal science and experience in ass-kissing for fun and profit might lead to any conclusion that covers their next car payment. The Sun's influence in global weather might have a bearing but that's outside their spnere of experience. Opinions are like ass-holes, everyone has one and some are one.
     
  8. Big Fitz
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    I wanna see Cro Magnon SUVs.
     
  9. waltky
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    waltky Wise ol' monkey Supporting Member

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    Granny says, "Dat's right...

    ... one day we gonna wake up...

    ... an' there won't be no air to breathe...

    ... `cause it all gonna be CO2...

    ... an' den we all gonna suffocate to death."
    :eek:
     
  10. Annie
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    Annie Diamond Member

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    Bump. I mean the numbers for the past 300 years ought to be air tight, right? Considering the science can go back thousands of years, less than 500 should be a no brainer.
     
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