The Australian Great Barrier Reef is another success story.

Under the realization from tourist operators, fishermen, the Australian Great Barrier Reef Authority and scientists that the Great Barrier Reef is doomed under the current governance regime.

A great deal of this has been happening in the Great Barrier Reef, particularly in coral reefs all over the world.

And that is the same reef that's the same reef 15 years ago that's the same reef today.

Reef them down. Men!

Coral reef in New Caledonia.

We're crocheting a coral reef.

Self Parking, Events Center, Shark Reef.

And there's a beautiful reef, very complex reef, with lots of animals, including a lot of octopus.

No to barrier walls.

Now, that's one barrier.

Well, there's the barrier.

like Kingman Reef, which is now protected.

I'd never seen the reef here before.

The ship was wrecked on a sunken reef.

Nassau groupers in Belize in the Mesoamerican Reef.

I'm an ecologist, mostly a coral reef ecologist.

Why on earth are you crocheting a reef?

Get back to the barrier!

This is a tracking experiment, and any of you scuba divers, if you want to get involved in one of the coolest projects ever, this is off the Great Barrier Reef.

Now, see this strange, underwater, coral reef looking thing?

Why not chisel a coral reef out of marble?

Show your ticket at the barrier.

Well, one obvious barrier is cost.

How does the reef work? Well, it's very, very simple.

Do we have evidence of this? Yes, coral reef systems.

This is our invocation in crochet of a bleached reef.

Very unlikely, Joe would jump on a pristine coral reef, a virgin coral reef with lots of coral, sharks, crocodiles, manatees, groupers, turtles, etc.

But money is so often a barrier.

And everywhere I go the barrier is

Maybe the barrier would be too universal.

There really wasn't much of a barrier.

And they impose a barrier to cooperation.

And when they're missing, it's a barrier.

They clean the reef everything that grows enough to be seen, they eat, and they keep the reef clean and allow the corals to replenish.

And the people in Chicago made a reef of their own.

between them a barrier they do not overpass.

So what they call Coulomb Barrier is reduced.

I wanted to get rid of this barrier.

The hardest barrier really is around stigma reduction.

We've broken the light barrier 22 hours early.

Anyway, one tree is situated right next to a beautiful coral reef.

The water had started coming back. It was foaming over the reef.

And We have put before them a barrier and behind them a barrier and covered them, so they do not see.

Between them is a barrier which they cannot pass.