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But no source or even information just dismissed.
The magnetic field is moving and weakening and will cause a difference on the climate over the next decade due to solar forcing.
So you are basically saying the moon doesn't cause tides on earth because, it cant lighten a body of water and cause a great bulge underneath?
Water vapor is vaporized water. Water which is in a gaseous state. Individual water molecules. Not droplets.
Water vapor is water droplets
originally posted by: Phage
a reply to: Breakthestreak
First, the inner core is thought to be solid, so how or why "matter" would "escape" from it is somewhat of a puzzle. Second, theory does say that Earth's magnetic field is produced primarily by convective motion (as well as rotational influences) of the outer core. It is changes in this movement which is thought to affect large scale changes in Earth's magnetic field and is exactly what the article in the OP is about.
Third, the following statement doesn't seem to have much to do with the inner or outer core, since there are 18 hundred miles of mantle in between the outer core and the crust.
“The ice caps are allowed to pull the shell of the earth around the interior, with the shallow molten layer lubricating the shift all the way”
Nor does it have much to do with the way plate tectonics operate. No idea what "the shell of the earth" is referring to, unless it's the crust. Which mixed with the idea that the ice caps drag the crust around makes the whole thing sort of absurd.
Would you care to share your source? I feel you may have misinterpreted something along the way.
A mine not on a geomagnetic area would not really do much, just in areas with lots of magnetic flow through them, that magnetic energy would hop to a different place and cause a move of our magnetic field.
This new evidence is consistent with the factor-of-2 equator-to-pole paleointensity signature of a geocentric axial dipole field and also indicates that the time-averaged field is considerably weaker than the present-day field. The resulting dipole moment provides a new calibration standard for cosmogenic isotope production rates and suggests that the present decrease in geomagnetic field intensity may simply be a return to a more average magnitude rather than a harbinger of a polarity reversal.
originally posted by: Phage
a reply to: ChayOphan
I've often said that we may be in the early stages of a geomagnetic reversal. Or not. We really have no way of knowing.
if there is no way of knowing we are in a flip stage how can you say it takes a long time?
There is every indication that such events occur over a very long time, in human terms.
There is no evidence that they have any dramatic effect on life or climate.
IMO Solar forcing affects the ionosphere - the weakening of the Earth's magnetic strength allows for that to be a greater.
I think that if the strength of the Earth's magnetic field falls significantly below its long term average it would be more indicative that a reversal is underway. We are quite far from that point. As to it being of "concern", not so much.
In your opinion when is the weakening of the Earth's magnetic field going to be a concern or is there no tipping point and having a magnetic field is irrelevant?
Because evidence of past occurrences indicate that is what happens. In your opinion, is there reason to think that the next one would be different?
if there is no way of knowing we are in a flip stage how can you say it takes a long time?
We propose that rather than three successive collapses and regenerations of the dipole field, spanning less than 9 ka, as hypothesized for all polarity reversals of the past 180 million years by Valet et al. (26), the most recent M-B reversal, for which by far the largest number of high-quality records are available, instead exhibits a more complex evolution of dipole-dominant and nondipole fields spanning at least 22 ka.
The last reversal occurred about 780,000 years ago. The fossil record shows no particular changes in biodiversity associated with it. In your opinion, is there reason to think the next one would be different?
The complexity of modern life compared to the last know flip 200,000 years ago would make your statement a rather naive and uninformed statement.