When most people think of the North Pole, they think of Santa Claus and his workshop of jolly elves.
Other folks, more paranoid, think of the Mayan calendar, and the warnings that the magnetic poles will flip and annihilate life on Earth. Few think of the real fact that last year the shifting magnetic north pole closed down an airport in Florida!
The North Magnetic Pole is shifting from Canada to Russia. Source: NASA
You see, while the actual North Pole, the axis that the Earth spins, is very stable, the magnetic north pole is always on the move. Historically it moves roughly 6 miles (10 km.) a year. It used to be right over Canada’s north coast. Now it is drifting through Canada’s Arctic Islands towards Russia. This makes it awkward if you are using a compass to navigate, as airplanes do.
Last year, Tampa International Airport had to close its runways because of the shift. Airport runways are labeled with their compass directions to help landing pilots. For example, for decades their main runway was Runway 18R/36L, indicating its alignment along the 180Ëš approach from the north and the 360Ëš (due north). By last year, the magnetic north pole had moved so much that the compass readings had changed 10 degrees and they had to rename the runway 19R/1L on aviation charts.
This movement, however, is minor. In the past we’ve seen the magnetic poles flip, so that compasses that pointed to the North Pole would point towards Antarctica! Geological records shows the poles usually flips about every 300,000 years.
The sloshing liquid core of the Earth moves the magnetic poles. Source: NASA
Remember, the real axis of the spinning world has not shifted. What is moving is the axis of the iron core of the Earth. The spinning of the molten iron core generates the Earth’s magnetic field.
Liquids slosh. Huge earthquakes and meteor strikes cause the liquid core to ripple and slosh around, changing the poles. Sometimes whirlpools form, creating multiple north and south poles. Currently there is a weird area with almost no magnetic force off the coast of Brazil, called the South Atlantic Anomaly.
When magnetic poles flip Source: NASA
When poles flip, geology shows they go from two poles, to multiple poles, back to two poles that have changed hemispheres. The process takes thousands of years. Life forms have lived through the shift multiple times.
So if the Doomsday prophets are right and the poles flip—don’t expect much in the way of doom and gloom. It might just mean that our great-grandchildren will watch the Northern Lights from sunny Florida.
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I don't understand this sentence
"The process takes thousands of years. Humanity has lived through the shift multiple times."
No we have not. The last flip occurred 780,000 years ago. Homo sapiens did not exist then, we were Neanderthals or just homo erectus back then.
I think the author meant LIFE has survived through the shift multiple times, since there is no evidence linking magnetic reversals with extinction events.
You’re right; it should have said life, not humanity. Thanks for catching that! We’ve corrected the article.
I raised 2 boys with facts about the weather and the stars, and anything else they were curious about. Children have as much ability to understand, when explained to them, as adults. There will always be people in this world that like to cause trouble. Gossip on any level should be ignored. My sons are now adults, and I just forwarded this article to them. We love to be able to express the real facts to those worry warts.
Hi Evelyn, I know this has nothing to do with magnetic pole shifts but right now in North Carolina we broke a standing record in the mid 70s today. Its December and were still going to be held in the 60s all week. I was watching the weather and I said to my husband "I dont think we're having a winter this year" and my 6 year old son happened to see the weather and he stormed to his room crying because he wants that winter this year. He's taking this seriously, he wants a colder December than last year but thats not happening. Goodness Gracious!! Is it ever going to feel like December? and is this going to be another winter that wasent? My holiday season is being ruined, come December 21 I dont know whether it'l be winter or spring. Confused winter lovers all over the US wondering whats going on
On December 22, 2012 I expect to wake up and say "I TOLD YOU SO" to these doomsdayers. These people are gonna feel awfully horrible sitting on their porch waiting for the world to end. Cant say we didnt tell them, right?
Another thing I expect on December 22 is a WINTER in the eastern portion of the country. Not a spring. This 70 degree weather is RIDICULOUS, Evelyn. I want it out of here As Soon As Possible. Im glad its December but I want it to feel like it. I refuse to watch Christmas movies and listen to my Christmas music until it feels like December. Depressing warm December weather, this is screwy to me
There is a scientist that claims heating and cooling is cyclical about every 50 years and around 2050, the earth will start getting cooler again.
I admire your opinions and am curious as to it on this theory ?
Keep up the great work !!!
He is describing the Pacific Decadal Oscillation, a huge heat circulation cycle in the Pacific. It is a 50 - 60 year cycle that warms and cools the waters of the Pacific. Yes, the PDO was in its warm cycle for decades and has recently begun the cooling phase. So its not the earth but the largest ocean on the earth that is cooling.
I don't think most preppers believe 12-21 is the end of the earth, some may believe it's the end of an age on earth. I think most preppers in the USA are preparing for various natural diasters, such as drought, rising food costs, financial breakdowns and either military rule or riot rule. Many of us take the Bible as truth and we read about Moses convincing Egypt to prepare and have seven years worth of food and water on hand for its' citizens, and enough to barter with various other tribes outside of it's city. Preppers don't want anything bad to happen, but they want to provide for basic necessities in case they do.
As Hurricane Sandy has shown, it's always wise to have some preparation, including family plans. Unexpected things happen and life is easier if you have a cushion or plan to fall back on.
I like this kind of information, it helps people too understand the truth of how our planet really works.
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