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Issue Discussion In June of 2000, the U.S. Navy and the National Oceanic and Atmospheric Administration (NOAA) reported the results of a three-month investigation. The research concluded with near-certainty that beachings and mass-mortality of whales on Abaco Island, Bahamas in March of that year were caused by the Navy's use of extremely loud "Low Frequency Active Sonar" (LFA Sonar) in the area at the same time. Scientists conducting necropsies on the dead whales found extreme damage to the inner ears of the mammals, which have been known for a century or more to communicate using complex sounds over vast distances in the planet's oceans. The Navy wishes to deploy an LFA Sonar system off the California coast which will blanket 80% of the world's oceans with man-made sounds billions of times more intense than levels which are known to disturb whales.
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