Global Warming Vs. Decreasing Magnetic Field.

[DawnCt1]

There is evidence that the magnetic field is decreasing at a more rapid rate than at any time in earth's history. Apparently they can decern this by examining elements in ancient clay pottery, etc. There is also speculation that perhaps there was water, an atmosphere, etc on Mars but that it lost its magnetic field and the atmosphere, water, etc was blown away by the solar winds. Earth could not survive without its magnetic shield. Also if there were a significant polar shift to more populated areas, this would present a much greater problem than solar exposure due to global warming. Any thoughts? We obviously can't do anything about the magnetic field.

 

[salmoneous]

The magnetic field is something we can't do anything about. Global warming is a completely different issue we can do something about. Interesting stuff, but I'm not sure why you are linking the two.

 

[DawnCt1]

The magnetic field is something we can't do anything about. Global warming is a completely different issue we can do something about. Interesting stuff, but I'm not sure why you are linking the two.

One we can't do anything about and will lead to the destruction of the earth. The other, I think we can only have negligible impact and there is evidence that the earth goes through cooling and warming cycles without the influence of man. We can probably survive a lot longer with a warming planet than we can with a vanishing magnetic shield.

 

[NJBlackBerry]

Both are obviously caused by Mission:Space.

 

[Kimberly]

The Earth's magnetic field will not collapse. This is merely the signs for a reversal in polarity. Extensive studies have been shown that the Earth's core is made up of mostly molten iron, which helps induce a dipole around the Earth. The only way that this dipole would collapse is if the core of our planet "burned out" and became solid.

The electric field of the Earth will collapse as it reverses itself, so it is a substantial thing to worry about, as solar wind can cause extensive damage to organic molecules.

 

[DarkSideMoon]

Both are obviously caused by Mission:Space.

ROFL..... Personally, the earth will go when the earth will go. Might as well enjoy the weather as it heats up.

 

[Laugh O. Grams]

The Earth's magnetic field will not collapse. This is merely the signs for a reversal in polarity. Extensive studies have been shown that the Earth's core is made up of mostly molten iron, which helps induce a dipole around the Earth. The only way that this dipole would collapse is if the core of our planet "burned out" and became solid.

The electric field of the Earth will collapse as it reverses itself, so it is a substantial thing to worry about, as solar wind can cause extensive damage to organic molecules.

Dipole?!? I'll thank you to watch your mouth, young lady!!!!! This is a family board!

 

[VSL]

the earth will go when the earth will go.

And as there is nothing we can do about the magnetic field thingy, I'm not going to worry about it.

 

[Kimberly]

Dipole?!? I'll thank you to watch your mouth, young lady!!!!! This is a family board!

But life will continue on. According to geological records, the Earth reverses it's dipole on average every 200,000 years. The last flip though was 780,000 years ago.

I spend way too much time reading science magazines!

 

[DawnCt1]

The Earth's magnetic field will not collapse. This is merely the signs for a reversal in polarity. Extensive studies have been shown that the Earth's core is made up of mostly molten iron, which helps induce a dipole around the Earth. The only way that this dipole would collapse is if the core of our planet "burned out" and became solid.

The electric field of the Earth will collapse as it reverses itself, so it is a substantial thing to worry about, as solar wind can cause extensive damage to organic molecules.

There are those who would disagree. A polar reserval would have serious consequences and while there is no evidence that the iron core can solidify due to pressure producing heat, there is an inexplicable decrease in the magnetic field and there are some scientists, recently in fact, on the Discovery Channel who predict that the magnetic field may be gone by the next millenium. To say that it can't happen is ignoring the probability of why Mars had a dramatic climate change and is without an atmosphere.

 

[DarkSideMoon]

And as there is nothing we can do about the magnetic field thingy, I'm not going to worry about it.

exactly, there was a show on the discovery channel the other night about it, it was pretty neat.

 

[jonestavern]

Yes, warming & cooling seems to have occurred naturally in the past & continues today.
We do need to curb ourselves when it comes to whatever damage we are so needlessly contributing~

Wow! a lot less shoveling this winter!

Jean

 

[Kimberly]

I hate to say it, but there already is a new dipole already forming. The Earth's magnetic field is caused from the convection of liquid metals in it's core, which in turn generates an electrical current resulting in an electric field. Over time, these electrical currents weaken, and new ones predominate.

As the new dipole forms though, most compasses will prove entirely useless. We might be exposed to more cosmic radiation resulting in a variety of problems, but never has a reversal in polarity of the Earth's magnetic field caused an extinction. There is no geological evidence for such an event (from what I've read).

Also the Discovery Channel makes a lot of money showing people what kind of disasters can happen if conditions are perfect for it to occur (i.e. - the supervolcano at Yellowstone, the flooding of London, and the recent Fire Storm show). Even though the Discovery Channel is educational entertainment, it is still, nonetheless, entertainment.

 

[Laugh O. Grams]

Yes, warming & cooling seems to have occurred naturally in the past & continues today.
We do need to curb ourselves when it comes to whatever damage we are so needlessly contributing~

Unless the point of the thread is "We're all gonna die anyway, so pollute away!" which couldn't be further from the truth, right Dawn?

 

[DawnCt1]

But life will continue on. According to geological records, the Earth reverses it's dipole on average every 200,000 years. The last flip though was 780,000 years ago.

I spend way too much time reading science magazines!

You would probably enjoy this website; www.mkaku.org

 

[salmoneous]

that the earth goes through cooling and warming cycles without the influence of man. We can probably survive a lot longer with a warming planet than we can with a vanishing magnetic shield.

Although the earth goes through heating and cooling cycles, that doesn't mean that what we are doing today is causing global warming, nore that the amount of global warming caused by human activity could have devistating consequences. Just because there are worse posibilities, that doesn't mean we should ignore it, does it?

 

[DawnCt1]

Although the earth goes through heating and cooling cycles, that doesn't mean that what we are doing today is causing global warming, nore that the amount of global warming caused by human activity could have devistating consequences. Just because there are worse posibilities, that doesn't mean we should ignore it, does it?

There are lot of reasons not to ignore polution beyond the issues of "global warming". Certainly quality of life issues, asthma, bronchitis, etc are more immediate concerns. China and Eastern Europe have air you can see.

 

[Viking]

The Earth's magnetic field will not collapse. This is merely the signs for a reversal in polarity. Extensive studies have been shown that the Earth's core is made up of mostly molten iron, which helps induce a dipole around the Earth. The only way that this dipole would collapse is if the core of our planet "burned out" and became solid.

The electric field of the Earth will collapse as it reverses itself, so it is a substantial thing to worry about, as solar wind can cause extensive damage to organic molecules.

As far as I know the core of the earth is solid iron, but you're right about the possible reversal of the earth's magnetic field. To be exact it has been 'overdue' for 155,000 years now. Recent simulations show that a switch of the polarity will leave us vulnerable to radiation for something between 5 and 15 minutes - no big deal.
My employer is the world's largest provider of navigational data for the aviation industry. Nearly every week we have to re-issue charts and databases due to a change of magnetic variation. The earth's magnetic field is constantly changing anyway - But I can tell you a reversal of polarity will cause a lot of overtime for my coworkers and me

 

[Viking]

There are lot of reasons not to ignore polution beyond the issues of "global warming". Certainly quality of life issues, asthma, bronchitis, etc are more immediate concerns. China and Eastern Europe have air you can see.

So has LA. Please don't forget the F-A-C-T that the USA still causes 25% of the global pollution. Only the Australians have a higher per capita rate of pollution than the USA.

 

[Duckfan-in-Chicago]

No wonder my magnadoodle wasn't working this morning!