Gregory Stone once lived underwater for 30 days. He is an ocean scientist and author who has spent a career studying and advocating on behalf of our oceans. He's now with an executive vice president with  Conservation International  and is one of the world's leading authorities on ocean health and ocean conservation.   We caught up just as a big UN conference on oceans was wrapping up in New York. This was the first-ever UN conference on Oceans and ocean health and we kick off discussing some of his takeways from that meeting.   We of course discuss his life and career and where his love for the oceans all began. And we have some great digressions along the way about scuba diving in the antarctic, the first time he saw up close the effect of climate change on coral reefs and why plastic is such a nemesis for our oceans.   Leave a review on iTunes!    You can EMAIL Mark by clicking here.    Become a premium subscriber to unlock bonus episodes, earn other rewards, and support the show! Bonus episodes for premium subscribers include: #1: International Relations Theory, explained. #2: A Brief History of Nuclear Non-proliferation #3: A Brief History of NATO #4: The Syrian Civil War, explained.  #5: Meet the Kim family of North Korea. #6: Better Know Vladimir Putin #7: How to Get a Job at the United Nations   #8: How to Pick the Right International Relations Graduate School