SAVE THE WHALES! 'A deaf whale is a dead whale': US navy sonars could be cause of strandings"

"..According to the NRDC, a non-profit that seeks to
protect wildlife, sonar can be devastating to whales
and other marine animals that rely largely on hearing
to complete daily functions, including orientation and
communication. Without the ability to hear, it is
difficult for whales to "find their way through the
world every day", the organization says in a fact
sheet ..."

http://www.theguardian.com/environment/2015/jun/14/stranded-whales-ocean-navy-sonars