Just as we have the power to harm the ocean, we have the power to put in place policies and modify our own behavior in ways that would be an insuranc… - Sylvia A. Earle

The living ocean drives planetary chemistry, governs climate and weather, and otherwise provides the cornerstone of the life-support system for all creatures on our planet, from deep-sea starfish to desert sagebrush. That's why the ocean matters. If the sea is sick, we'll feel it. If it dies, we die. Our future and the state of the oceans are one.

(What is the biggest threat to the ocean right now?) Deep-sea mining. Some are buying into the lie that we should be taking minerals that are necessary for today’s generation of [EV] batteries, like lithium, cobalt and nickel, from the deep sea, because who cares what happens in the deep sea? These deep-sea systems are full of life and are part of the biogeochemical cycling systems that hold Earth steady. If Earth functions like a big computer system with all these little wires and lights that we don’t understand but we know it keeps us alive, would we want to get in there and take those little lights out because we don’t understand how they work?

(What is the single most important thing we can do for the oceans today?) Right now a disproportionate bite out of the ocean is being taken by a relatively small number of countries doing industrial fishing. We’ve got to get over this idea that wildlife from the ocean is essential for our food security. What we now are beginning to understand is the high cost of eating fish. What does it take to make a pound of tuna? A lot of halibut or cod. What makes the halibut? Smaller fish. What do they eat? Krill. Krill eat phytoplankton, zooplankton. Over the years thousands of pounds of phytoplankton make a single pound of tuna. So that tuna is expensive in terms of the carbon that it has captured. The more fish we take out of the sea, the more carbon dioxide gets released into the atmosphere.