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2007-01-24 14:56:01 · 7 answers · asked by david w knows best most times if 1 in Science & Mathematics Earth Sciences & Geology

7 answers

You have the concepts in reverse order. The Earth's magnetic field has been weakening in preparation for a reverse in the planet's polarity. The issue is that we have not yet begun to assimilate what the the impact of the weaker magnetic field could be on the global climate.

But understand two things very clearly. First, throughout its history, the Earth's polarity has shifted back and forth between north and south (on average of about once every 150,000 years) and it is entirely a process of the planet's core and has nothing to do with any kind of human activity. In the centuries leading up to a polarity change, the strength of the magnetic field weakens.

Second, the planet's climate is changing. However, to assume that the Earth's climate would be constant, and not dynamic, is absurd. The fact is that we have no idea what factors impact the climate and to what degree. But anyone who thinks that the planet should be the same today as it was 4 million years ago is grossly ignorant.

2007-01-24 15:27:09 · answer #1 · answered by frankmoore 4 · 0 0

Climate does not affect the earth's magnetic Field. The earth, according to scientists, is what looks like the beginning stages of another magnetic reversal, where magnetic north becomes magnetic south and vice versa. Before this happens, historically, the magnetic Field has gotten weaker and eventually, for a short time, disappeared. So, it looks as if we are going thru a magnetic reversal.

By the way: there is climate, the majority of scientists agree that global warming is happening. The debate now is its cause.

2007-01-24 15:17:08 · answer #2 · answered by Anonymous · 1 0

This question is nonsense. The Earth's magnetic poles are on the verge of reversing. This phenomenon has been documented in oceanic crust for the past 180 million years and has an average reversal time of 200,000 years, so we are long overdue for another reversal. Climate change can have several reasons, such as the releasing or sequestering of CO2, or the amount of dust in the atmosphere, or the amount of radiant energy produced by the sun. These two phenomena have different causes and are not related.

2007-01-25 06:00:48 · answer #3 · answered by Amphibolite 7 · 0 0

Climate change is surficial, magnetism is generated by the iron-nickle core of the Earth, they have no bearing on each other as far as we know.
The magnetic field is undergoing a reversal and in order to do that, the magnetism will weaken in some areas, and strengthen in others until eventually the poles will be switched!

2007-01-24 15:05:04 · answer #4 · answered by lynn y 3 · 2 0

This question is hard to answer. The poles are weaker than when? Where did you get the info that poles are weaker?

In any case they probably are not weaker, actually increased industrialization throughout the world has created a magnetic interference.

2007-01-24 15:04:38 · answer #5 · answered by battledoc 2 · 0 1

the poles do shift positions ie north magnetic field becomes south and vice versa in some million years, perhaps the phenomenon is about to repeat it self....

2007-01-24 15:07:28 · answer #6 · answered by blitzkrieg_hatf6 2 · 0 1

What does the earth's magnitism have to do with climate change? I don't see how you relate the two.

2007-01-24 16:57:08 · answer #7 · answered by Anonymous · 0 1

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