Scientists find hole in Earth's magnetic field
source: http://www.google.com/hostednews/ap/article/ALeqM5icoTIKwhFHx5mZXRR9CpvHU7R76QD95468NO0
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- Katmai512
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Scientists have long known that the Earth's magnetic field, which guards against severe space weather, is similar to a drafty old house that sometimes lets in violent eruptions of charged particles from the sun. Such a breach can cause brilliant auroras or disrupt satellite and ground communications.
"It was growing rather fast," Themis scientist Marit Oieroset of the University of California, Berkeley told an American Geophysical Union meeting in San Francisco.
Such breaches are temporary, and the one observed last year lasted about an hour, Oieroset said.
Solar flares are a potential danger to astronauts in orbit but generally are not a risk to people on the surface of the Earth.
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- groups:
- Green, Earth and Science, Science, Current News US
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- tags:
- Green, Earth and Science, Science, Current News US, 2 more
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asherp
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No protection?
Does that mean the planet is going to get pregnant?
- 3 years ago
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asherp
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BentFranklin
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presssrecord is correct in the terminology geomagnetic reversal. However, he is incorrect about the link between global warming and geomagnetic reversal.
As the earth warms, water mass shifts from the poles to the equator. That slows down the Earth's crustal rotation. The core, however, still spins just as fast for a while. While this difference in rotation occurs it sets up turbulence in the molten iron core that is the source of our geodynamo. This causes a disruption in the dynamo until it can be restored. It has a 50 percent chance of restoring in either direction (north or south). While it is disrupted it can become weak or chaotic and little north and south poles can spring up all over the earth.
Over geologic time, geomagnetic reversals have occurred from roughly half of the large asteroid hits and other similar length-of-day changes that might not have identifiable causes.
- 3 years ago
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BentFranklin
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iDigTulsa
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Sounds like someone's playing the HAARP a few more times for kicks before they leave Office.
CHECK IT OUT!!!
- 3 years ago
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iDigTulsa
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jeffreyak
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Stop!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- 3 years ago
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jeffreyak
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Cuddlebones
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Can we patch that bitch up?
- 3 years ago
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Cuddlebones
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kennymotown
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Pretty scary stuff, I guess if the worst happens it will be quick.
- 3 years ago
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kennymotown
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KI4CLZ
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Today's Space Weather
- 3 years ago
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KI4CLZ
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damnneargenius
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It's all in your head.
- 3 years ago
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damnneargenius
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standingchair
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Whether global warming has caused this or whether it is naturally occurring does not change the fact that we are polluting our planet and we need to take measures to stop our negative effects on our air, our water, and our land.
- 3 years ago
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standingchair
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pressrecord
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standingchair:
yes, true indeed, but we all need to have a consensus as to how to go about it. if we believe that it is all human caused, we may ignore the signs that our planet is changing whether we have policies or not. in that case, we may miss the proper preparations for such changes, believing that policies and behavior alone will save the planet.
we need to make changes that will ensure our human survival should these planetary changes be unavoidable. agree?
- 3 years ago
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pressrecord
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deeblackangel
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srsly u guys
- 3 years ago
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deeblackangel
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crob80227
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Even if holes get torn in the magenetic field all the time Saladin, that doesn't necessarily mean it's harmless to life on earth.
It might be "perfectly natural" for the magentic field to -- oops! -- stop protecting us from interstellar radiation, but it could still kill us if it "naturally" gets significantly thinner.
Keep in mind that a gamma burst from a distant neutron star is a perfectly natural occurance...but if it hit earth directly it would pretty much destroy all life on the planet.
I propose we start panicking and not wait till the last minute to start over turning cop cars and setting them on fire.
- 3 years ago
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crob80227
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Toni801
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crob80227:
Preach! say it :) i agree with you!
- 3 years ago
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Toni801
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Toni801
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crob80227:
Ha! what you think of that mr saladin haha. Im so glad we have smart people like you to defend things thanks a bunch!
- 3 years ago
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Toni801
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crob80227
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crob80227:
I totally agree with you Toni801....I am awesome!
- 3 years ago
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crob80227
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Saladin
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crob80227:
There's no correlation between magnetic field loss and mass extinction at any point on the fossil record.
Even during total fuckups, like during a reversal of the poles, nothing dies out in large numbers. The fact is a hole in our magnetic field is always temporary and even if it wasn't. even IF it was the beginning of a reversal, we'd still be fine.
You'd just have to wear a lot more sunblock if you wanted to avoid cancer. :p
- 3 years ago
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Saladin
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ivxx
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crob80227:
It depends on your definition of mass extinction. In geomagnetic reversals a particular regions climate could change relatively quickly killing all life in the area. It might not be a MASS extinction but extinction non the less.
- 3 years ago
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ivxx
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Toni801
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wow that is scary sign of the times? haha another one for that matter. And why are we barely hearing about it if they discovered it last summer? Our mainstream media is so brain washing and they pick and choose to keep us uninformed. BBC or Mexican news stations tell the truth not just what you want to hear. Point is we should be more informed about these things.
- 3 years ago
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Toni801
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Saladin
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Toni801:
It's not a "sign of the times." Those times will never come, much as you'd like them too.
If you had read the article, you would know that this happens all the time.
- 3 years ago
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Saladin
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Toni801
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Toni801:
and maybe if you would read revelation in the bible then you would know those times are going to come. And just because it happens all the time doesn't mean it is not sigifigant in the world of science. Ok?
- 3 years ago
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Toni801
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Saladin
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Toni801:
Because I'm sure you know a lot about the world of science right? Especially that evolution bit?
I've read revelation, my favorite part is Jesus coming down with a sword coming out of his mouth. Ancient people sure thought up wacky stuff.
I can name you two dozen anti-christs just off the top of my head. Technically, according to the bible, revelations was supposed to happen several hundred years after Christ's death. Emperor Constantine makes a good choice if you actually believe the story, people called him the anti-christ at the time.
It's not coming, ever. You just want it to come because it's FUN to believe it's coming.
- 3 years ago
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Saladin
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zealotohio
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Wait, drafty old houses sometimes let in violent eruptions of charged particles from the sun?
lolz
- 3 years ago
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zealotohio
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Saladin
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I'm kinda shocked this made it on tv, this is obviously a fluff piece.
Holes get torn in our magnetic field all the time, there's nothing significant about it.
But I guess it appeals to the magnetic reversal people.
- 3 years ago
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Saladin
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idealist
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its easy to clump every enviroment based problem together and call it global warming. but do not call global warming a scare tactic "chowmein2012"
i hope im not around for the switching of the magnetic poles. - 3 years ago
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idealist
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chowmein2012 [removed]
- This comment was removed as a violation of community guidelines.
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chowmein2012 [removed]
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Saladin
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chowmein2012:
Uh yeah they do.
Science isn't some mega-evil conspiracy designed to propagate global warming and evolution, the two biggest whining topics of faux-Christians.
Global warming and the magnetic field aren't related.
Go read a book.
- 3 years ago
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Saladin
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cerealforeal
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Let's hope these breaches stay temporary. If not, we're going to be in a whole heap of trouble.
- 3 years ago
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cerealforeal
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crob80227
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Ha ha!
I bet there is an exact replica of the Oval Office built in secure bunkers all over the world for just such an emergency....to create the illusion that the Commander in Chief is still in the US and still in the White House. Don't want to create a panic!
Somewhere right now Haliburton is putting the finishing touches on some futuristic geodesic dome on the ocean floor just in case there is a unfortunate interstellar gamma burst or solar flare that threatens to wipe out the surface of the earth.
"My fellow Americans, I want you to remain calm. I want to assure you that....I am perfectly safe! For those of you who survive the incoming radiation storm I promise that you will all be given shiny medal and stimulus checks. Good luck!"
- 3 years ago
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crob80227
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simplecj
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I guess it's a good thing that our sun is extremely dormant right now. No excess radiation from solar flares or sun spots...
- 3 years ago
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simplecj
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KI4CLZ
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simplecj:
We are at the bottom of the 11 year solar cycle... I wish the spots would come back... I am a HAM Radio operator and in order for radio signals to propagate over long distances we need greater ionization... We probably have had about 10 spots the entire year...
- 3 years ago
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KI4CLZ
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islek
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I like the phrase "severe space weather."
- 3 years ago
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islek
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KI4CLZ
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The Magnetosphere is in a constant state of flux.
It's intensity is determined by Solar winds, It is quite lucky that these scientists managed to see a "hole" for any length of time due to the differing layers constant motion and ionization changes.I bet my boots they saw it on the night side of the planet when the F1-F2 layers combine and can grow quote "thin". These things are no worry in the big scheme of things, you would have to shut down the entire earths' magnetic field for the magnetosphere to dissipate then fry us like bacon.
As to 'cynkers' comment on HAARP it is quite possible they could have disrupted the ionization for a moment while conducting their flux measurements but not likely... the array at HAARP is still a little to small to do that...
- 3 years ago
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KI4CLZ
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arcticspirit
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Yeah saw this on TV, they say it will slowly grow and stuff. Eventually we will be like Mars, but that is a long time away.
- 3 years ago
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arcticspirit
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cynker
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google haarp
- 3 years ago
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cynker
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jimmypockets
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cycles.
- 3 years ago
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jimmypockets
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starr111
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This leads me further into the story... the missing patch of missing protection in the lower hemisphere is similar to computer enactment of the north and south poles flipping, showing that we are close to being turned upside down. It has happened before on earth, we were not around for it.
- 3 years ago
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starr111
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halcyonrage
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starr111:
thats a very interesting observation. could the magnetic shift be a cause of (or the sole cause of) global warming?
- 3 years ago
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halcyonrage
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pressrecord
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starr111:
there is a difference between "Pole Shift" and "Geomagnetic Reversal." Pole Shift is with the axis of the Earth (axial reorientation) whereas a Geomagnetic Reversal is when we get turned "upside down."
neither are caused by global warming and are actually naturally occurring geo phenomena that span millennia apart and can take several thousand years to finish.
in fact, global warming can theoretically be an effect of such phenomena, meaning it's unavoidable and not human caused.
- 3 years ago
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pressrecord
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ivxx
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starr111:
We've never lived threw one (on record) so to define them isn't really possible. All we know is that geomagnetic reversals came is short frequent intervals than there was an abrupt change and the intervals became much longer and mass extinctions also occur relatively soon after.
Yes there is a difference between "Pole Shift" and "Geomagnetic Reversal" but both can be mistaken for global warming and both we are due for. So my question is this: If global warming is happening, that is a major problem but one which we have a solution. What if one of these is happening what CAN be done about it?
- 3 years ago
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ivxx
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pressrecord
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starr111:
i think we should invest more on science, medicine, and technology and start de-emphasizing competition traits in our culture and education for the long term.
specifically, i think it's a good idea to investigate harnessing more of the ocean's energy and submarine habitation. i know it sounds sci-fi but the only thing consistent throughout all known major planetary calamities, extraterrestrial (asteroids) or otherwise (volcanic/ice), is that the world oceans are constant.
for immediate action, as in policies and practice, we should heavily emphasize protecting the oceans and the creatures that dwell in them from pollution by human (business or government) or organic (coral reef invasive organisms) sources worldwide. this also includes terrestrial factors in ocean welfare such as forest care and biodegradable plastic consumption.
yes, we should stop all pollution whether it be air, water, or mental. but, i do believe that it will need to be a coordinated effort between science and government and not economic or religious enterprises.
- 3 years ago
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pressrecord
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ivxx
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starr111:
I completely agree! There needs to be a greater emphasis on expanding what the entirety of civilization knows and increasing the knowledge of each and every individual.
- 3 years ago
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ivxx
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BentFranklin
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starr111:
presssrecord is correct in the terminology geomagnetic reversal. However, he is incorrect about the link between global warming and geomagnetic reversal.
As the earth warms, water mass shifts from the poles to the equator. That slows down the Earth's crustal rotation. The core, however, still spins just as fast for a while. While this difference in rotation occurs it sets up turbulence in the molten iron core that is the source of our geodynamo. This causes a disruption in the dynamo until it can be restored. It has a 50 percent chance of restoring in either direction (north or south). While it is disrupted it can become weak or chaotic and little north and south poles can spring up all over the earth.
Over geologic time, geomagnetic reversals have occurred from roughly half of the large asteroid hits and other similar length-of-day changes that might not have identifiable causes.
- 3 years ago
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BentFranklin
