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skeptical - chemtrails

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  • eric
    First of all, the Skepticed email list is about getting the skeptical message out to young people: http://groups.yahoo.com/group/skepticed The first agenda
    Message 1 of 1 , Nov 30, 2002
      First of all, the "Skepticed" email list is about getting the skeptical message out to young people:
      The first agenda of the list is to help get a good booth and message out to the March 2003 Science Teachers convention in Philadelphia.  Any donations made to CSICOP earmarked for this effort would be a good thing. More on the CSICOP backed effort to help young people is found at:
       Concerning the paranoid conspiracy theory- "Chem Trails".   I personally think that most paranormal nonsense provides a unique opportunity to teach people real science in a response.  The following rational email shows a simple scientific response to chicken-little contrail ranting:  "contrails will look most impressive when upper atmospheric conditions are such that just a little additional vapor from engine exhaust is enough to act as a catalyst for cloud formation".   Another addition I would make is that some masses of parallel contrail lines in my area are formed by planes in a busy major route with a cross wind.  Each successive planes contrail keeps being blown along making it look like an attempt to cover the whole sky.
      Message: 2
         Date: Wed, 13 Nov 2002 17:26:58 -0000
         From: "frank_pills" <frank_pills@...>
      Subject: debunking chemtrails

      Chris Lydgate of the Willamette Week (Oregon) wrote a detailed report
      on Sept. 26th, 2001 on the "CHEM TRAIL" phenomenon. Lydgate wrote
      about Portland observers of the "Chemtrails," and even New Mexico's
      own Cliff Carnicom (see http://www.nmsr.org/chemtrls.htm). He also
      included comments from an old-timer meteorologist who puts the kibosh
      on the "Trails." He wrote "If there is a giant conspiracy to spray
      chemicals from the sky, chances are good that Professor John Day is
      not a part of it. The author of six books on meteorology, Day is a
      world-renowned expert on clouds, a professor emeritus at Linfield
      College and a regular contributor to the McMinnville News-Register,
      ... When he hears the word 'chemtrail,' however, Day's frosty mustache
      droops, and his sky-blue eyes darken. 'I don't happen to warm up to
      that phenomenon,' he sighs. Despite his reluctance to be drawn into
      the controversy, Day graciously agreed to examine photographs of
      chemtrails to see if he spotted anything unusual. 'This is a perfectly
      normal situation with cirrocumulus cloud and a single spreading
      contrail,' he declared after inspecting one photo for a full minute.
      Then he flipped to the next. 'Nothing weird about that. Cirrostratus
      cloud...' And the next. 'The criss-cross pattern is a consequence of
      planes flying criss-cross patterns....' And the next. 'I've seen many
      situations like this one....' Contrail formation, Day explained,
      depends on the relative humidity of the atmosphere-- he ratio of what
      is to what could be at a particular temperature. When relative
      humidity is low, contrails dissipate within seconds. But when relative
      humidity is high, especially at the subzero temperatures of the upper
      atmosphere, the addition of even a tiny amount of water vapor acts as
      a catalyst. Under these conditions, contrails may linger and spread to
      cover the whole sky. ...At length, Day extracted from his bookshelf a
      well-thumbed edition of Peterson's Field Guide to Clouds and Weather,
      which he co-authored in 1991 (a good 10 years before chemtrails became
      widely discussed), turned to the section on contrails, and pointed to
      a photograph of a thick, white plume--a plume that looked for all the
      world like a chemtrail..."


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