To what extent are instabilities in the Earth's magnetic field contributing to global warming?

Question

It has been 780,000 years since the last time the Earth's magnetic field flipped polarity. A weakening of the overall field strength and an dramatic increase in the number of instabilities seem to indicate that a new flip is beginning. Are we biginning to see hot spots develop from solar radiation pouring in through weak spots? Will we eventually be exposed to radiation from the Van Allen belt?

http://news.nationalgeographic.com/news/2004/09/0927_040927_field_flip.html
http://observer.guardian.co.uk/international/story/0,6903,837058,00.html
http://en.wikipedia.org/wiki/Van_Allen_radiation_belt

Answer 1

It is true that the Earth's field seems to be getting less stable and is expected to revers within the next few thousand years.

It is also true that the field protects us from certain types of radiation but diverting it to the poles, that is what causes Northern Lights.

That sort of radiation is made of of charged particles and is responsible for only a very small part of the total energy from the Sun. Note that much of it ends up being absorbed by the atmosphere in any case but in a different place than it would otherwise end up, the primary protective effect is diverting the radiation away from inhabited areas.

The main source of energy that is responsible for global warming is light. Light does not interact with magnetic fields at all.

Therefore the Earth's magnetic field is not at all related to global warming.

Answer 2

Almost none of that radiation is in the spectrum of infrared. This is the only spectrum that can contribute to global warming. The heat from the sun is constant and otherwise it is all an amazing cold of 3 degrees absolute.
There is also no indication that the poles have flipped in the past twenty years.
There is a lot of evidence that greenhouse gasses made by humans contributed to this. I cant help but think all these websites are a smoke screen to cover up what is sound scientific evidence.

Answer 3

I dont know what effect the magnetic field of earth has on global temperature, BUT i studied this and i do know that heat effects magnetism - it destroys it.

also, it is believed that the earth's magnetic field is produced by a dynamo effect, - the circulation of molten material inside the earth. this produces electric currents that in turn induce the magnetic field.

increased volcanic activity may have the effect of slowing or altering the movement of molten material inside the planet. this could alter the earth's magnetic field.

i would like to see the climate scientists address the subject of global warming potentially reducing the earth's magnetic field. to my knowledge this has never been studied.

Answer 4

The magnetic fields have not in any respect flipped. the theory that they have (and could lower back) are born from measuring the transformations in stages of magnetic fields and and asserting the more beneficial measurements advise a field in a unmarried route and a weaker one ability a unfavorable field. by using that "common sense", it really is like lining a set of folk up and asserting the tallest ones are truly tall and asserting the shorter ones are negatively tall - like 5'2" INTO the floor! i have seen not some thing to connect any dots of magnetic fields and climate structures.

Answer 5

There is probably no contribution. At some point we are going to have to realize that burning the huge amounts of fossil fuels we do is likely to affect the planet. I am not saying the Earth will not handle it; I'm just saying we have to accept the fact and deal with it.

Answer 6

No, there's no reason to believe this, anymore than the chance than that we'll die from a Pole Shift which happens on a far more "regular" interval. When this happens, the winds can reach over 2,000 m.p.h. actually igniting fires just by touching objects at that speed.

In my opinion there is no reason to worry about any of these events.

Answer 7

I wish you people would make up your minds!! The last person said global cooling is going to cause a new ice age, so I unloaded all my stock in shorts!! Which is it? Cooling or warming??