Earth's magnetic field protects us from harmful particles and radiation from the sun and other cosmic sources. The magnetic field essentially creates a shield around our planet, redirecting most charged particles away from Earth and trapping others in a region called the Van Allen radiation belts. This protects our atmosphere from being stripped away by solar winds, and reduces the risk of damage to our infrastructure and technology. Without Earth's magnetic field, we would be much more vulnerable to the effects of solar flares and coronal mass ejections, which can cause power outages, damage to satellites and communication systems, and potentially harm living organisms.
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