Global warming has caused many large whales to move from warmer waters, increasing the risk of being struck by ships. Norwegian researchers have converted existing fiber-optic cables into hydrophones, enabling them to track Arctic fin whales in real time. The easy-to-adopt technique may reduce the incidence of ship strikes and help protect whales worldwide. Climate change is occurring more quickly in the Arctic region than anywhere else, causing rapid change to marine ecosystems. The Svalbard archipelago, a Norwegian archipelago in the Arctic Ocean