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Please understand, nothing I said was an attack on your character or person. If you don't like others pointing out that you are spreading ignorance on a site dedicated to denying it, might I suggest you be a little more careful of the content you post. You might not have liked my cold approach to it, but I don't like others coming along and essentially "pooping in my garden" (posting a false claim on ATS), then having me step in it (by watching the video) by coaxing me into looking for some NASA warning that never was, bait and switch. You going to give me my 13min back? Didn't think so. I think what you did here today was malicious. I think what you did wasted my time. I think what you did only helped to spread ignorance to those who don't know better. I applaud you for at the very least changing the title. I however am not apologetic for taking a stand against ignorance.
Originally posted by mikellmikell
Wasn't this supposed to happen last year or was it the year before. Nice to see it still lives at least in someones head
Originally posted by Chuan
Be warned saint birgatti or whatever it's called is full of propaganda, I take anything they post on youtube with a grain of salt.
Well seeing's how noone was around to record the last time this type of event occurred (about 780,000 years ago), I don't understand how you can explicitly state what the effects will be.
Originally posted by libertytoallThis results in crazy weather anomalies, possible electrical grid failure, food delivery systems frozen, not to mention higher bombardment from solar radiation.
Not long after the first geomagnetic polarity time scales were produced, scientists began exploring the possibility that reversals could be linked to extinctions. Most such proposals rest on the assumption that the Earth's field has much lower intensity during reversals. Possibly the first such hypothesis was that high energy particles trapped in the Van Allen radiation belt could be liberated and bombard the Earth. Detailed calculations confirm that, if the Earth's dipole field disappeared entirely (leaving the quadrupole and higher components), most of the atmosphere could be reached by high energy particles. However, the atmosphere would stop them. Instead there would be secondary radiation of 10Be or 36Cl from collisions of cosmic rays with the atmosphere. There is evidence that this occurs both during secular variation and during reversals.
Another hypothesis by McCormac and Evans assumes that the Earth's field would disappear entirely during reversals. They argue that the atmosphere of Mars may have been eroded away by the solar wind because it had no magnetic field to protect it. They predict that ions would be stripped away from Earth's atmosphere above 100 km. However, the evidence from paleointensity measurements is that the magnetic field does not disappear. Based on paleointensity data for the last 800,000 years, the magnetopause is still estimated to be at about 3 Earth radii during the Brunhes-Matuyama reversal. Even if the magnetic field disappeared, the solar wind may induce a sufficient magnetic field in the Earth's ionosphere to shield the surface from energetic particles.
Hypotheses have also been advanced linking reversals to mass extinctions. Many such arguments were based on an apparent periodicity in the rate of reversals; more careful analyses show that the reversal record is not periodic. It may be, however, that the ends of superchrons have caused vigorous convection leading to widespread volcanism, and that the subsequent airborne ash caused extinctions.
Tests of correlations between extinctions and reversals are difficult for a number of reasons. Larger animals are too scarce in the fossil record for good statistics, so paleontologists have analyzed microfossil extinctions. Even microfossil data can be unreliable if there are hiatuses in the fossil record. It can appear that the extinction occurs at the end of a polarity interval when the rest of that polarity interval was simply eroded away. Statistical analysis shows no evidence for a correlation between reversals and extinctions.