The British Broadcasting Corporation reports:
US Navy in sonar ban over whales
Whales use sound waves to navigate, hunt and communicate
A federal judge in California has ordered the US Navy to temporarily stop using sonar equipment because it might harm whales and other sea mammals.
Environmentalists applied for the restraining order to cover a Pacific warfare exercise off Hawaii’s coast.
The US Department of Defense had earlier exempted the navy from another law aimed at protecting sea mammals against the use of sonar equipment.
See also here.
British navy sonar kills whales: here.