June 8 is World Oceans Day, a good time to listen again to legendary marine biologist Sylvia Earle's 2009 TED talk. Earle shares astonishing images of the ocean -- and shocking statistics about its rapid decline -- gathered over 50 years of research. The effects of the changes in the ocean, by what we've taken out and what we've put in, matter to us all. Now, it matters more than ever that we participate in Earle's big wish: that we will join her in protecting the vital blue heart of our planet.