The U.S. navy has some cause to smile now, after a federal court of appeals overturned an earlier stay on its use of high-powered sonar in training exercises off the Southern California coast. Though temporary, the reprieve is being welcomed by officials in the Navy.

The high energy sonar is used to track down enemy submarines in a conflict situation, and the efficacy of this method can now be determined. Earlier, a Los Angeles court had ruled such sonar use invalid, as it posed grave environmental risks.

Earlier, scientists have found links between the use of high powered sonar and whale deaths. Studies have indicated even mid-frequency sonar can cause whales to be stranded and display panicky behavior.

The decision to allow the navy to proceed with its use of high powered sonar came after a panel of judges voted 2-1 for it. The earlier decision preventing the use of such sonar was handed down by U.S. District Judge Florence-Marie Cooper keeping in mind the environmental aspect.

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Navy Allowed t use Sonar
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