I am an unlimited Master in the shipping industry.

Ships, tugs, and other commercial vessels have the best magnetic compasses money can by. These compasses are backed up with very expensive and precise motorized gyro compasses. All of them are professionally tuned by men trained to do such a task. All of these compasses are required by law to monitor and record all dviation and variation, where ever they go. Which by the way, is all over the world.

I have yet to see, experience, or hear of any abnormal variation happening anywhere. On top of that, all local magnetic variations are well known and are charted on nautical publications put out by governments the world over then compared with real time data from ships and airliners. Still no abnormal variation.

So far nothing has changed, anywhere. But that doesn't mean your house isn't spinning. LOL!