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When salty seawater moves through Earth's naturally occurring magnetic field, it forms tiny electric fields and magnetic fields. Because electromagnetic signals are known to vary depending on seawater temperature and salinity, scientists think they could be useful for monitoring changes in ocean climate. Using a state-of-the-art model of the Earth's ecosystems, scientists simulated how ocean warming due to climate change over the next 94 years will affect the electromagnetic signals emitted by ocean tides. [Source: EOS (American Geophysical Union)]
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