Navy, Eco-Group Settle on Sonar in Hawaii Whale Area
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In this National Geographic News article, read about how the U.S. Navy began using mid-frequency sonar during training exercises off Hawaii in compliance with an out-of-court settlement with Natural Resources Defense Council (NRDC). A temporary restraining order had previously blocked the use of high-intensity sonar during the exercises because the NRDC said it harmed whales and other marine mammals. Links to other stories, photos, videos and Web sites are also found on this page.
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Grade: 3 to 12
Topics: Science, History-Social Science, Geography, Life Sciences, American Democracy, Ecology & Ecosystems
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