May 25, 2026

Who Actually Owns the Ocean?

Who Actually Owns the Ocean?
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High seas conservation matters because nearly half of the planet lies beyond any one country’s control. In this episode of How to Protect the Ocean, we ask a deceptively simple question: who actually owns the ocean?

Andrew breaks down what the high seas are, why international waters have historically been treated like a free-for-all, and why that approach no longer works in a world of industrial fishing, deep-sea mining interests, global shipping, and climate change.

This episode explains why the high seas matter to tuna, sharks, whales, sea turtles, global food systems, and climate stability, and why the High Seas Treaty could become one of the most important ocean protection tools of our time.

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Transcript
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Almost half of the planet belongs
to no country at all, and for

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decades, much of it had been treated
like a resource free-for-all.

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This is the How to Protect the Ocean
podcast, your weekly ocean news update.

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If you care about staying informed on
the ocean every single weekday, Monday

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00:00:14,592 --> 00:00:17,927
to Friday, hit that follow button on
your favorite podcast app now, so

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you don't miss tomorrow's story.

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Today, we're answering a
deceptively simple question.

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Who actually owns the ocean?

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Look, the ocean covers 71% of the planet.

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Every country manages about 200
nautical miles off of their coastline,

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so what happens to the rest of it?

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Because when we hear terms like high seas
or international waters, most people

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picture open ocean far from shore and
assume someone has to be in charge.

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But the reality is much more complicated.

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And that complexity is one of the
biggest reasons ocean conservation

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has struggled for decades.

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So the definition of the high
seas is basically open areas

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outside of any country's borders.

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So every coastal nation controls waters
close to shore through what's called

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the exclusive economic zone, or EEZ.

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It generally stretches out for
about two hundred nautical miles

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from the country's coastline.

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Inside those waters, countries control
fishing rights, oil exploration, shipping

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regulations, and conservation measures.

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But once you move beyond those
boundaries, you enter the high seas.

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And to be honest, they're massive.

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And I've covered a number of episodes
on the high seas over the years, but I

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want to reset today and just really
talk about, you know, the high seas

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and who owns it, especially today.

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And this week, we're gonna be
talking all about the high seas.

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We have a really great episode at the end
of the week where we do an interview with

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the director of the High Seas Alliance.

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We talk all about what's coming up
this year, why is this is such a

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big year in 2026 for the high seas.

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So we're talking nearly half of the
surface of the Earth for the high seas.

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Like, just the high seas.

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Like, taking out the exclusive
economic zones, just the high seas.

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That means the largest ecosystem
on the planet exists mostly outside

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any direct national control.

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That's a pretty big amount.

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It's a lot of responsibility for nobody.

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That's a hard thing to
wrap around your head.

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Imagine if half the Amazon
rainforest belonged to nobody.

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Imagine if there were almost no
enforceable protections around that.

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Imagine if countries, corporations,
and industries could operate

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there with limited oversight.

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That's essentially what the
world has allowed to happen

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in large parts of the ocean.

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Historically, the high seas were
built around the concept of freedom.

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Freedom to navigate, freedom to
fish, freedom to conduct commerce.

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And for centuries, that made
sense because people believed the

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ocean was too large to damage.

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It's so big.

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Like, it's this massive empty space.

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We can't do any damage to it.

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But industrial technology
changed everything.

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The Industrial Revolution just
changed absolutely everything.

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Now, massive fishing fleets can operate
thousands of kilometers from shore.

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Deep sea mining companies want
access to untouched ecosystems.

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And cargo shipping crosses
nearly every ocean basin.

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And climate change is stressing marine
life everywhere at the same time.

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The ocean may feel endless, but
it's no longer beyond human impact.

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In fact, every part of the ocean
has been impacted by humans.

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And it's really shown when you go to
the deepest part of the ocean, the

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Mariana Trench, and you actually see
plastic pollution in the Mariana Trench.

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And here's why this matters to
everyday people like yourself.

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The high seas help regulate the climate.

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I'm gonna say that one more time.

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The high seas help regulate the climate.

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And this is huge because when we talk
about climate change, we rarely talk about

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the ocean, unless you're on this podcast
and you're talking to a marine biologist.

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Climate change has to do with ocean,
and ocean has to do with climate change.

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They are interchangeable.

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But these high seas, they support
migratory species like tuna,

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sharks, whales, and sea turtles.

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They connect ecosystems
across entire ocean basins.

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And they help support global food systems.

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So what happens in the high seas
does not stay in the high seas.

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It's not like Vegas.

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It's not like Vegas one bit.

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If tuna populations collapse offshore,
coastal fisheries suffer too.

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If biodiversity disappears in
deep ocean ecosystems, we may lose

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species before we even discover them.

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And one of the biggest
problems is visibility.

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Most people never see
what happens far offshore.

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We'll see the plastic on beaches.

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We may see the coral bleaching.

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But industrial activity in the open
ocean often happens out of sight.

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That makes accountability harder.

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And this is what, to be honest, not
that I'm a huge fan of what they've

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done in the past, but Sea Shepherd has
done for decades, is they've actually

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gone out into the high seas, even
though nobody can really stop them

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from doing anything, and they've
gotten in the way of Japanese whalers.

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They've chased down illegal fishing
boats from all over the world.

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They've been able to do this
because it works on the high seas.

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There's nobody to stop the Sea Shepherd
from doing anything, and there's

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nobody to stop the illegal fishers and
the illegal whalers from doing the

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damage that they wanna do to the ocean.

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So it makes accountability harder, even
if you're trying to do conservation or

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if you're not trying to do conservation,
or you're trying to protect conservation.

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And enforcement becomes incredibly
difficult when vessels are operating

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days or weeks away from land.

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This is part of the reason ocean
advocates pushed so hard for the High

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Seas Treaty, which we're gonna be talking
about tomorrow and the rest of the

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week, to be honest, and to be honest,

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for a long, long time.

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Because the ocean can't function
effectively as disconnected pieces.

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Marine life, it does not
recognize political borders.

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They don't recognize the
exclusive economic zone.

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Ocean currents do not stop at exclusive
economic lines, and that's where

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like fisheries will be huge part.

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I've talked about this
before on the podcast.

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There is a squid fishery that starts
within the exclusive economic zone of

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Argentina along the coast, but then
eventually that fishery was gonna go

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over that border where there are a long
line of distant water fleets, like

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Chinese fleets and other countries'
fleets, who are waiting for those squids

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a certain time of year 'cause they know
they go over the exclusive economic

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zone, and they'll fish them, and they'll
try and grab as many possible 'cause

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there's nobody to hold them accountable.

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The ocean is connected, but
governance has remained fragmented.

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And that's an important piece, right?

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It's an important piece to talk about
how these governance system gets

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fragmented because you can't hold
people accountable in the high seas.

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It's pretty much the Wild Wild West
if you think about it in that way.

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But we can provide the information, and
now with the High Seas Treaty, which we're

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gonna talk about tomorrow, we can provide
that information, and we can give you the

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answers so that you can make responsible
decisions on what is coming from the high

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seas, whether it's seafood, whatever goes
to the high seas like plastic pollution.

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You can make those decisions.

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And that's what we try to do here on
the podcast, and if you're getting value

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from that on this podcast and you're
getting that information so you can make

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a better decision, I'd love for you
to hit that follow button right now on

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your favorite podcast app so that you
don't miss any of the other episodes

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that we're gonna be doing, not only
this week, but later on in the future.

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That's what we really wanna do.

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Now, what happens next?

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So now the big question
becomes, can the world actually

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govern the high seas effectively.

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We know that nobody really
owns it, but can we do that?

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And that's where the High
Seas Treaty enters the story.

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The treaty claims to create a
framework for protecting biodiversity

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beyond national jurisdiction.

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In simpler terms, it creates
a pathway for marine protected

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areas in international waters.

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That's a huge shift and a huge
challenge to come forward because

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until recently, creating meaningful
protections in those areas was

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incredibly difficult politically because
just nobody was there to manage it.

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You couldn't even enforce it
because there's no jurisdiction.

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So anybody who went in there to fish,
if, say, fishing was gonna be blocked for

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that marine protected area, anybody that
went in there, well, it doesn't matter.

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They can get away with whatever they
want because nobody has jurisdiction.

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But this is where it
gets really complicated.

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A treaty alone does not
automatically protect the ocean.

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Countries still need to ratify it, and
they need to agree on enforcement.

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They need funding, they need monitoring
systems, and they need political will.

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This is the part that Rebecca Hubbard
emphasized repeatedly in conversations

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around the treaty, which we're
gonna be talking about on Friday.

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From now until Thursday, this is
the setup for our Friday interview.

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And the agreement for the treaty
creates this type of opportunity, but

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implementation determines success,
and that's true for almost every

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conservation effort that we've seen.

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Protection only works when it becomes
real in the water, not just on paper.

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We've talked about that for a long
time about marine protected areas.

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So the high seas are not just some like
distant place disconnected from our lives.

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We know that we affect change
that happens, whether good or bad,

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among the ocean basins, across the
ocean basins, everywhere in the

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ocean, because we have that effect.

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We're humans.

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We have this ability to do that.

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But the high seas, they
help stabilize the planet.

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They support marine life, and they
influence the future of the ocean itself.

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And for the first time in history,
the world is trying to build a

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system to protect them collectively.

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And that matters because the ocean
story is really a shared responsibility.

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That's what it is.

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It's a shared responsibility story.

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And this story is what we're gonna be
talking about for the rest of this week.

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The High Seas Treaty, which we'll
talk about, focus on tomorrow, was

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just ratified finally by 60 countries.

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Now I think we're up to 89
countries the last time I checked.

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That will kinda tell who is involved.

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So we're at about just over half of
the countries in the world, and we

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can see that things are starting to
collectively get really great, and we're

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gonna start to see some really great
things that are happening in the future.

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We just need more countries
to ratify, including my own

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Canada has not ratified yet.

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We hope that they'll
ratify within the year.

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Not sure what's really happening there.

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They haven't really spoken about it.

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There's some other things that are
distracting them, I think, that are

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happening in the world, but that is
no excuse because we just do not have

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the time to wait to protect the ocean.

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That has to happen as soon as
possible, like yesterday, and the

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day before, and the day before that.

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So that's it for today's episode.

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I just wanna say, if you are interested
in learning more and you haven't followed

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the podcast yet, follow that podcast.

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The more people that follow the
podcast, the higher we get in the

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charts, and then that means the
more people that get access to it.

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They get to see it.

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They get to visualize it.

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There are a lot of podcasts in
these podcast stores, whether it's

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Spotify, Apple, Amazon Music,
wherever you get your podcasts.

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There's a lot of competition out
there, and there's some great podcasts

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that have some amazing information.

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However, for us to kinda get in
front of other people's faces, we

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like to get up into those charts.

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And the more you follow,
the higher we get.

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And plus you don't miss
any other episodes.

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So just from a selfish reason,
for yourself, like let's do it.

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If you wanna learn more about the ocean,
this is the podcast to do it with.

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All right.

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That's it for today's episode.

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I wanna thank you so much for
joining me on today's episode of the

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How to Protect the Ocean podcast.

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If you wanna get ahold of me,
just check the show notes.

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Until next time, have a great day.

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00:10:52,725 --> 00:10:55,285
We'll talk to you tomorrow,
and happy conservation.