nine-and-a-half: Underwater Noise – Why is the Ocean So Loud?

Beaches seem peaceful, but beneath the water’s surface, it can be incredibly loud. Noise pollution in oceans, rivers, and lakes has increased over the past decades, affecting marine animals. Reporter Robert joins scientist Jeff on a boat trip to study how noise impacts seals. What has the research team discovered? Why is underwater noise a serious problem for many species? And how can we make the ocean quieter? This episode explores these questions.