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Lightning and charge of earth

  1. Nov 9, 2007 #1
    i read from this site http://thunder.msfc.nasa.gov/primer/primer2.html [Broken] that electrons from lower portion of clouds goes to ground beacuse of earth's positive charge....

    but the below two sites tell that earth is negatively charged...
    http://www.madsci.org/posts/archives...2284.Es.r.html [Broken]
    http://www.nuenergy.org/alt/earth_charge.htm

    which one is correct?..is earth positively charged or negatively charged?
     
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Nov 10, 2007 #2
    both are

    see the earth as a whole (including atmosphere) is generally thought to be neutral in total

    while the lightning page is looking at the earth only and not the atmosphere.
     
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