Narrator: This is the Great Barrier Reef, and it's dying. Less than 20 years ago, the world's largest living structure looked like this, and this. But today, ongoing pressures from climate change put it at serious risk for being wiped out entirely. In fact, in August, an official report by the Australian government downgraded the reef's future outlook from "poor" to "very poor." So, how exactly did we get here? And can it be reversed?
Narrator: The Great Barrier Reef is big. So big, in fact, that you can see it from space.
David Wachenfeld: It's important for people to remember that the Great Barrier Reef
