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**CHyLmxDr** · 08-15-2012, 11:31 PM

Could the Earth lose its magnetic field?

Is our magnetic field already in decay?

The infamous South Atlantic Anomaly region exists in a weakened part of our magnetic field...Is this a forerunner of things to come?
When are we due for the next pole flip?
Will this contribute to a decay in our magnetic field?

Do any of the above present a greater danger to our fart arse little blue orb then say getting slammed by a large Asteroid, .....or human induced global warming?.
Would rapid decay of our magnetic field contribute to global warming....

Our magnetic field is thought to be caused by the differential spin rate, of the Earth's molten core and crust and mantle and convection currents created due to temperature differentials with depth.

What would need to change with these physical aspects to affect the magnetic field to any great extent......

Are we aware of when any of the situations I have mentioned are due?
If not what sort of warning would we get [if we havn't got it already]

Are we confident of changes affecting our magnetic field to be a couple of billion years away?
A few hundred thousand years?
A few hundred years?

08-15-2012, 11:31 PM	#1
CHyLmxDr Join Date Nov 2005 Posts 429 Senior Member	Earth's Magnetic Field: Could the Earth lose its magnetic field? Is our magnetic field already in decay? The infamous South Atlantic Anomaly region exists in a weakened part of our magnetic field...Is this a forerunner of things to come? When are we due for the next pole flip? Will this contribute to a decay in our magnetic field? Do any of the above present a greater danger to our fart arse little blue orb then say getting slammed by a large Asteroid, .....or human induced global warming?. Would rapid decay of our magnetic field contribute to global warming.... Our magnetic field is thought to be caused by the differential spin rate, of the Earth's molten core and crust and mantle and convection currents created due to temperature differentials with depth. What would need to change with these physical aspects to affect the magnetic field to any great extent...... Are we aware of when any of the situations I have mentioned are due? If not what sort of warning would we get [if we havn't got it already] Are we confident of changes affecting our magnetic field to be a couple of billion years away? A few hundred thousand years? A few hundred years?
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