The greatest protection against the ability of life on Earth's surface is that the Earth's magnetic field deflects large amounts of charged ions and isolates large amounts of harmful cosmic rays from the atmosphere. Recently, scientists found that the South Atlantic magnetic field began to flip the Earth's magnetic field is being weakened. They have studied the idea that if the Earth's magnetic field were reversed, all living things would be extinct without magnetic protection.
At present, in the South Atlantic, within the abnormal region, orbiting satellites pass by here, often with problems best supports the above conclusion.