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Old 13th Jan 2019, 09:43
  #31 (permalink)  
Blackfriar
 
Join Date: Nov 2013
Location: Somerset
Posts: 76
Originally Posted by Asturias56 View Post
Short term - change in compass declination, repainting work etc

medium term - gradual decline in field strength and more variability

long term - flip - but that may take 500 years - nothing to much to worry about - its happened lots of times since Homo sap. started
Yes, no worries, except civilisation as we know it will disappear.
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