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Fw: Gas May Have Spurred Ancient Global Warming-Nature

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  • P. Neuman self only
    June 2, 2004 ... In an article in the science journal Nature, Norwegian researchers said they had found traces of thousands of hydrothermal vents in lava off
    Message 1 of 1 , Jun 6, 2004
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      June 2, 2004
      ...
      In an article in the science journal Nature, Norwegian researchers said
      they had found traces of thousands of hydrothermal vents in lava off
      Norway that could have been the source of a rise in greenhouse gases 55
      million years ago. Until now, scientists have been at a loss to explain
      the trigger for a 5-10 Celsius (10-20 F) global warming over about 10,000
      years in the Eocene -- a blink in geological time.
      ...
      The scientists said the annual rate of modern human emissions of
      greenhouse
      gases to the atmosphere in the 1990s -- from fossil fuels burnt in cars,
      factories and power plants -- was 35 to 360 times as fast as the pace of
      the Eocene gas buildup.

      Faster now

      "We can cause the same amount of global warming ourselves in a few
      hundred years at current rates," Svensen said. Scientists say that gases
      linked to human activity could bring disaster with more storms, floods
      and higher sea levels. The Eocene global warming theory outlined in
      Nature bolsters the idea that a buildup of gases can disrupt the climate,
      as forecast by U.N. models. A U.N. panel of scientists has predicted a
      1.4 to 5.8 Celsius rise in temperatures by 2100.
      ...
      OSLO, Norway
      By Alister Doyle (Reuters) --
      http://www.cnn.com/2004/TECH/science/06/03/environment.warming.reut/index
      .html


      Pat N


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