You ******* moron:
The earthÂ’s magnetic field is an important key to life on the planet. It diverts most of that stream of charged particles produced by the sun known as solar winds. Also,
changes in the earthÂ’s magnetic field have been connected with climate changes. The drift of the magnetic north pole seem to have little impact upon life on the earth. Only sailors using their instruments of navigation or trekkers in the wilderness with compasses would have noticed the change for most of human history. Interestingly,
two airports in Florida have modified the orientation of their runways to reflect the drift.
Now look who is the ******* moron. And that is all you will ever be. Even in your own post it states that the drift has little impact on life. Learn to read with some comprehension, Midnight.
In the article below from the same British Geological Society site, you can see that the atmosphere provides a blanket that is the equal of 13 ft. of concrete as far as that type of solar radiation is concerned.
Magnetic Reversals
What happens during a reversal? What do we see at the Earth's surface?
As above, we have limited evidence from geological measurements about the patterns of change in the magnetic field during a reversal. We might expect to see, based on models of the field run on supercomputers, a far more complicated field pattern at the Earth's surface, with perhaps more than one North and South pole at any given time. We might also see the poles 'wandering' with time from their current positions towards and across the equator. The overall strength of the field, anywhere on the Earth, may be no more than a tenth of its strength now.
Is there any danger to life?
Almost certainly not. The Earth's magnetic field is contained within a region of space, known as the magnetosphere, by the action of the solar wind. The magnetosphere deflects many, but not all, of the high-energy particles that flow from the Sun in the solar wind and from other sources in the galaxy. Sometimes the Sun is particularly active, for example when there are many sunspots, and it may send clouds of high-energy particles in the direction of the Earth. During such solar 'flares' and 'coronal mass ejections', astronauts in Earth orbit may need extra shelter to avoid higher doses of radiation. Therefore we know that the Earth's magnetic field offers only some, rather than complete, resistance to particle radiation from space. Indeed high-energy particles can actually be accelerated within the magnetosphere.
At the Earth's surface, the atmosphere acts as an extra blanket to stop all but the most energetic of the solar and galactic radiation.
In the absence of a magnetic field, the atmosphere would still stop most of the radiation. Indeed the atmosphere shields us from high-energy radiation as effectively as a concrete layer some 13 feet thick.
Human beings have been on the Earth for a number of million years, during which there have been many reversals, and there is no obvious correlation between human development and reversals. Similarly, reversal patterns do not match patterns in species extinction during geological history.
Some animals, such as pigeons and whales, may use the Earth's magnetic field for direction finding. Assuming that a reversal takes a number of thousand years, that is, over many generations of each species, each animal may well adapt to the changing magnetic environment, or develop different methods of navigation.
