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What might happen if earth's magnetic field continues to lose strength?
Wiki User
∙ 11y ago
We would we be exposed to radiation bursts from the Sun--the kind which erupt of the order of once a year (or less).We are shielded by the atmosphere, an absorber comparable to 10 feet of concrete. Solar bursts cannot penetrate that thickness. It is true that the magnetic field of Earth deflects the fast protons of those bursts even before they reach the top of the atmosphere--but that magnetic shield fails near the magnetic poles, yet no extra radiation is detected there at ground level.Without magnetic protection, the solar wind emitted by the Sun would also reach the atmosphere. Could it perhaps strip our atmosphere away?Maybe, given a few billion years, but not quickly. Venus lacks a magnetic field and experiences a stronger solar wind, being closer to the Sun, yet retains a very dense atmosphere. Mars, without a global-size magnetic field, has only a thin one--but the gravity holding down its atmosphere is only 1/3 of ours.
Wiki User
∙ 11y ago
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