Hi Cindy,
In a message to Tom Walker you wrote:

 TW>> Wait a minute. You must be reading a different echo than i am,
 TW>> becasuew someone HERE did sat the the circle was not only moving

 CH>  I'm wondering which cicrcle. :) The actual area of land mass or the
 CH> mad made 'circle' designating that area as 'Arctic.' :)

 CH> I think the mass might be moving but the man made circle doesn't? :)

there's several areas in discussion...

1. there's the map line that forms a circle...

2. there's the area defined by the average temperature...

the second one is what Roy was talking about and it is not a circle but
rather odd shaped... and yes, its shape does change over time...

i'm not aware of the "mass" you are thinking of, though...

Bye bye!
  mark

 * SeM. 2.26  * The future of "I give" is "I take."