Magnetic field, ah! Right so, interestingly does that mean a polar shift (that every now and again people rave about) might have larger implications than breaki

Magnetic field, ah! Right so, interestingly does that mean a polar shift (that every now and again people rave about) might have larger implications than breaking electronics? Ie massive water loss? I feel like it would depend what the poles look like after the shift, is it likely the field could be weakened or would it just flip? I should probably try learn more about this.