US Navy banned from using sonar that harms dolphins and walrusesworldnews (34) in steemit • 8 years ago (edited) SOURCE: https://www.theguardian.com/us-news/2016/jul/16/us-navy-banned-from-using-sonar-that-harms-dolphins-and-walruses?CMP=edit_2221 steemit news steem