More whales are being killed by collisions with ships in busy shipping lanes. Off the coast of California, there was a record total of 27 whale strikes in 2018/19. Now US ocean scientists have developed a new whale-detection system that helps mariners reduce this risk. Whale Safe uses three technologies: an AI underwater recording system that detects whale calls; a mobile app for community scientists to record whale sightings; and a tool that provides near real-time forecasts of whale feeding grounds. The system, currently being tested, lets ships know when whales are nearby, so they can slow down to reduce the risk of collisions. weforum.org