Magnetic north is in consent movement, but for the past few years that movement has been accelerated. Scientists say sit is likely a natural cycle in the 1900's magnetic north shifted about 9 miles a year but in the 2000's it ramped up to 35 miles per year. Its time to get your compass calibrated folks. The aviation industry is working feverishly on upgrading everything from their navigational systems to runways.
http://www.sun-sentinel.com/news/local/fl-magnetic-north-shift-20110218,0,2819271.story
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