Navy sonar that harms whales and dolphins was improperly approved, US court finds

The US Navy is now using a particular type of sonar in more than half of the world’s ocean under an illegal permit. That sonar harms marine mammals like whales, dolphins, seals, and walruses. On Friday, the Ninth US Circuit Court of Appeals in California found that a 2012 regulation that allowed the Navy to use a low-frequency active sonar for training and testing violates the Marine Mammal Protection Act. Continue reading…