Coral Crisis: Part 3 of our interview with Dr. David Vaughan, marine biologist and coral expert

Coral reefs need people like Dr. David Vaughan, a marine biologist who's devoted his life to studying the mysteries of coral reefs and developing methods to restore them to their former grandeur. These vital ecosystems, relied upon by 1 billion humans and serving as the most biodiverse places on earth, face extinction due to warming oceans, more acidic and more polluted oceans as well as other threats to survival, mainly due to humans. Working with Philippe Cousteau (the famed Jacques Cousteau's grandson) and Ashlan Cousteau, Vaughan works to achieve the goal of coral regeneration around the world. Host Dan Bernard, who works with Vaughan and Voyacy Regen, helps listeners learn more about this crisis.