The Mystery of Earth's Magnetic Field

Sahana says what's happening to earth's magnetic field? Why is it weakening are the magnetic poles shifting? What are the consequences? Okay, so the earth has a magnetic field Mmm magnetic lines of force that come out of the south pole and the reenter the north pole. The magnetic poles keep on moving over time. So as you can see there is a difference between these things Now what what creates the magnetic field?