Barbara Block: We know very little about tuna. It’s the 21st century but we really have just begun studying the oceans.
Brian Skerry: The ocean’s not a grocery store; we can’t keep taking and not paying.
Daniel Pauly: Ocean simluations draw gasps now, because we know we are seeing what we have lost.
Dianna Cohen: 80 to 90 percent of ocean pollution is plastic. We should call it what it is: “plastic pollution.”
Roz Savage: We do the Pacific a disservice on our maps — we cut it in half. Google Earth shows how big it really is.
Photos: TED / James Duncan Davidson