Recent data show the Earth’s oceans are warming much more rapidly than previously reported. That means rising sea levels, stronger storms, and more intense droughts. Also, fertilizer runoff can create massive algae blooms in water that suck up oxygen and create dead zones for most other forms of life. The Chesapeake Bay is particularly vulnerable but restaurants in Pittsburgh are pitching in to help. And a documentary miniseries seeks to unravel the secrets of whale behavior and understand whale cultures of orcas, humpbacks, narwhals, belugas, and sperm whales. “Secrets of the Whales” and more, this week on Living on Earth.     Learn more about your ad choices. Visit megaphone.fm/adchoices