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["Don Bowen" <don.bowen AT earthlink.net>]

I've always believed/known that climate change could be quick.  You and
I grew up in an era where it was taught that all processes are slow and
gradual, but we all know there must be balance.  The Grand Canyon is a
prime example...been there for millions of years, but a lot of erosion
happened catastrophically in floods...
++++++++++++++++++++++++++++++++++++++++++++++

This was an issue when describing the Channeled Scablands in Washington.  By 
the 70s many geologists were saying the erosion happened very fast, maybe in 
a few days.  But many geologists stuck with the very long ties they were 
used to.  It was not until further research convinced many.

Don Bowen      KI6DIU
http://www.braingarage.com/Dons/Travels/journal/Journal.html