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According to Tech Insider
- Earth’s north magnetic pole keeps shifting. Each year, it moves north by an average of about 30 miles.
- Magnetic north shifted so much in the last few years that the National Oceanic and Atmospheric Administration issued an early update to its World Magnetic Model, which tracks Earth’s magnetic field.
- The World Magnetic Model informs everything from Google Maps to the US Department of Defense’s navigation systems.
The Earth’s north magnetic pole has led scientists on something of a chase over the last century.
This point, which is not the same as geographic north, is critical for compasses as well as plane, submarine, and ship navigation. Yet over the last few decades, magnetic north has moved erratically over Nunavut, Canada, flitting north toward Siberia.
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