The Letter: A Message For Our Earth

The Voice of Wildlife

Clip: Special | 2m 15s | Video has closed captioning.

Greg Asner and Robin Martin developed a technique that visualizes the health of ecosystems. In Hawaii they are scanning coral reefs with their flying laboratory. They are determined to help the voiceless below the waterline.

Aired: 12/21/22

Rating: NR

Problems Playing Video? | Closed Captioning