The case for fish farming

So I come from the tallest
people on the planet --

the Dutch.

(Laughter)

It hasn't always been this way.

In fact,

all across the globe, people
have been gaining height.

In the last 150 years,

in developed countries,

on average, we have gotten
10 centimeters taller.

Scientists have a lot of theories
about why this is,

but almost all of them involve nutrition

and in the increase of dairy and meat.

In the last 50 years,

global meat consumption
has more than quadrupled,

from 71 million tons to 310 million tons.

Something similar has been
going on with milk and eggs.

In every society where income has risen,
so has protein consumption.

And we know that globally,
we are getting richer.

And as the middle class is on the rise,
so is our global population,

from 7 billion of us today
to 9.7 billion by 2050,

which means that by 2050,

we are going to need at least
70 percent more protein

than what is available to humankind today.

And the latest prediction by the UN

puts that population number by the end
of this century at 11 billion,

which means that we
are going to need a lot more protein.

This challenge is staggering --

so much so that recently,

a team at Anglia Ruskin
Global Sustainability Institute

suggested that if we don't
change our global policies

on food production systems,

our societies might actually collapse
in the next 30 years.

Currently, our ocean serves
as the main source of animal protein.

Over 2.6 billion people
depend on it every single day.

At the same time,

our global fisheries are
two-and-a-half-times larger

than what our oceans
can sustainably support.

Meaning that humans take
far more fish from the ocean

than the oceans can naturally replace.

WWF recently published a report
showing that just in the last 40 years,

our global marine life
has been slashed in half.

And another recent report suggests
that of our largest predatory species,

such as swordfish and bluefin tuna,

over 90 percent has
disappeared since the 1950s.

And there are a lot of great, sustainable
fishing initiatives across the planet,

working towards better practices
and better-managed fisheries.

But ultimately,

all of these initiatives are working
towards keeping current catch constant.

It's unlikely,

even with the best-managed fisheries,

that we are going to be able
to take much more from the ocean

than we do today.

We have to stop plundering
our oceans the way we have.

We need to alleviate the pressure on it.

And we are at point

where if we push much harder
for more produce,

we might face total collapse.

Our current systems are not going to feed
a growing global population.

So how do we fix this?

What's the world going to look like
in just 35 short years

when there's 2.7 billion more of us
sharing the same resources?

We could all become vegan.

Sounds like a great idea,

but it's not realistic

and impossibly hard to mandate globally.

People are eating animal protein
whether we like it or not.

And suppose we fail to change our ways

and continue on the current paths,

failing to meet demands.

The World Health Organization
recently reported

that 800 million people are suffering
from malnutrition and food shortage,

which is due to that same
growing, global population

and the declining access to resources
like water, energy and land.

It takes very little imagination

to picture a world of global unrest,
[ ? ] and further, malnutrition.

People are hungry,

and we are running dangerously low
on natural resources.

For so, so many reasons,

we need to change our global
food production systems.

We must do better

and there is a solution.

And that solution lies in aquaculture --

the farming of fish, plants like seaweed,
shellfish and crustaceans.

As the great ocean hero
Jacques Cousteau once said,

"We must start using the sea
as farmers instead of hunters.

That is what civilization is all about --

farming replacing hunting."

Fish is the last food that we hunt.

And why is it that we keep
hearing phrases like,

"Life's too short for farmed fish,"

or, "wild-caught, of course,"

over fish that we know
virtually nothing about.

We don't know [what they do]
in its lifetime,

and we don't know what
pollution it encounters.

[And if it was] a large predatory species,

it might have gone through
the coast of Fukushima yesterday,

we don't know.

Very few people realize

the traceability in fisheries

never goes beyond the hunter
that caught the wild animal.

But let's back up for a second

and talk about why
fish is the best food choice.

It's healthy,

it prevents heart disease,

it provides key amino acids

and key fatty acids like Omega-3s,

which is very different from almost
any other type of meat,

and aside from being healthy,

it's also a lot more exciting and diverse.

Think about it.

Most animal farming is pretty monotonous.

Cow is cow,

sheep is sheep,

pig's pig,

and poultry --

turkey, duck, chicken --

pretty much sums it up.

And then there's 500 species of fish
being found currently.

Not that [restaurants] and supermarkets
reflect that on their shelves,

but that's beside that point.

And you can farm fish
in a very healthy manner

that's good for us, good for the planet
and good for the fish.

I know I sound fish-obsessed.

(Laughter)

Let me explain.

My brilliant partner and wife --

Amy Novograntz and I got involved
in aquaculture a couple of years ago.

We were inspired by Sylvia Earle,

who won the TED prize in 2009.

We actually met on Mission Blue I
in the Galapagos,

and Amy was there
as the TED Prize Director

me, an entrepreneur from the Netherlands,

concerned citizen, love to dive,
passion for the oceans --

Mission Blue truly changed our lives.

We fell in love,

got married,

and we came away really inspired,

thinking we really want to do something
about ocean conservation --

something that was meant to last,

that could make a real difference,

and something that we could do togehter.

Little did we expect that that would
lead us to fish farming.

But a few months after
we got off the boat,

we got to a meeting
at Conservation International

where the Director General of world fish
was talking about aquaculture,

asking a room full of environmentalists
to stop turning from it,

realize what was going on,

and to really get involved.

Because aquaculture has the potential

to be just what our oceans
and our populations need.

We were stunned when we heard the stats

that we didn't know more
about this industry already,

and excited about the chance
to help get it right.

And to talk about stats --

right now, the amount of fish
consumed globally,

wild-catch and farmed combined,

is twice the tonnage

of the total amount of beef
produced on planet Earth last year.

Every single fishing vessel combined,

small and large,

across the globe,

together produce about
65 million tons of wild-caught seafood

for human consumption.

Aquaculture this year,

for the first time in history,

actually produces more than what
we catch from the wild.

But now this.

Demand is going to go up.

In the next 35 years

we are going to need an additional
85 million tons to meet demand,

which is one-and-a-half times as much --

almost --

as what we catch globally out our oceans.

An enormous number.

It's safe to assume that that's not
going to come from the ocean.

It needs to come from farming.

And talk about farming --

and for farming you need resources.

As a human needs to eat
to grow and stay alive,

so does an animal.

A cow needs to eat 8-to-9 pounds of feed

and drink almost 8,000 liters of water

to create just one pound of meat.

Experts agree that it's impossible

to farm cows for every
inhabitant on this planet.

We just don't have enough feed or water.

And we can't keep cutting down
rainforests for it.

And fresh water --

planet Earth has a very limited supply.

We need something more efficient

to keep humankind alive on this planet.

And now let's compare
that with fish farming.

You can farm one pound of fish
with just one pound of feed.

And depending on species, even less.

And why is that?

Well that's because
fish first of all, floats.

It doesn't need to stand around all day
resisting gravity like we do.

And most fish are cold-blooded -

they don't need to heat themselves --

the fish chills.

(Laughter)

And it needs very little water,

which is counterintuitive,

but as we say,

it swims in it but it hardly drinks it.

Fish is the most resource-efficient
animal protein available to humankind

aside from insects.

How much we've learned since.

For example,

that on top of that 65 million tons

that's annually caught
for human consumption,

there's an additional 30 million tons
caught for animal feed.

Mostly sardines and anchovies
for the aquaculture industry

that's turned into fishmeal and fish oil.

This is madness.

65 percent of these fisheries,
globally are badly managed.

Some of the worst issues
of our time are connected to it.

It's destroying our oceans.

The worst slavery issues
imaginable are connected to it.

Recently, an article came out of Stamford

saying that if 50 percent
of the world's aquaculture industry

would stop using fishmeal,

our oceans would be saved.

Now think about that for a minute.

Now we know that the oceans
have far more problems ...

they have pollution,

there's acidification,

coral reef destruction and so on ...

but it underlines the impact
of our fisheries,

and it underlines how
interconnected everything is.

Fisheries, aquaculture, deforestation,

climate change, food security and so on.

In the search of solutions,

the industry,

at a massive scale,

has reverted to plant-based alternatives

like soy, industrial chicken waste,

blood meal from slaughter houses,

and so on ...

And we understand where
these choices come from

but this is not the right approach.

It's not sustainably,

it's not healthy.

Have you ever seen a chicken
at the bottom of the ocean?

Of course not.

If you feed salmon soy with nothing else,

it literally explodes.

Salmon is a carnivore,

it has no way to digest soy.

Now fish farming is by far

the best animal farming
available to humankind.

But it's had a really bad reputation.