What happens if Earth loses its magnetic field?
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First, life would continue. We have gone through magnetic field reversal about every quarter of a million years for around a billion years. Some things will change during the period of field minimum but this won’t be a disaster movie.
Probable outcomes (for a thousand years or so)
Wonderful auroras in the night sky, even at lower latitudesSimple magnetic compass navigation will be useless. This will impact animals that use this extensively like some varieties of birds. People with GPS units on their phones may not notice this.
First, life would continue. We have gone through magnetic field reversal about every quarter of a million years for around a billion years. Some things will change during the period of field minimum but this won’t be a disaster movie.
Probable outcomes (for a thousand years or so)
Wonderful auroras in the night sky, even at lower latitudesSimple magnetic compass navigation will be useless. This will impact animals that use this extensively like some varieties of birds. People with GPS units on their phones may not notice this.
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