Three-quarters of our planet is covered with water—and it's this water that sustains life as we know it. But our liquid planet, home to half of the world's known creatures, isn't getting the care it needs. That's why leading scientists say that 30 percent of our oceans should be protected—that is, free from overfishing and commercial development. Host Dan LeDuc explores why this 30 percent data point is important with two people devoted to safeguarding the oceans: native Hawaiian Sol Kaho'ohalahala, whose culture and livelihood depend on sustainable seas; and Matt Rand, who directs the Pew Bertarelli Ocean Legacy Project and has been working with people like Kaho'ohalahala since 2006 to keep our oceans healthy. To learn more, visit pewtrusts.org/afterthefact.