http://www.allheadlinenews.com/articles/7003366135
"Honolulu, Hawaii - The Navy's use of sonar during maritime exercises may have contributed to the mass stranding of more than 150 whales in Hawaii's Hanalei Bay two years ago, government scientists said."

"Some wildlife advocates believe the sound waves hurt whales, possibly by damaging their hearing or causing them to rise to the surface too quickly and get decompression sickness."

"The Navy says it will comply with the agency's requests, but said the report released Thursday did not conclusively show sonar triggered the stranding."