US Navy limits 'whale-harming' sonar in Pacific
AP
The US Navy has agreed to limit its use of sonar that may inadvertently harm whales and dolphins in waters near Hawaii and California.
A federal judge in Honolulu signed the deal between the Navy and environmental groups on Monday.
It restricts or bans the use of mid-frequency active sonar and explosives used in training exercises.
Campaigners say that sonar disrupts the feeding of marine mammals, and can even cause deafness or death.
