That's not actually a good thing because it means there's no life.

Marine species are actually most abundant in coastal areas, but it's also whereas humans prefer to live, too.

That's when we build here way drive away.

Marine life.

The concrete in the marine world has a lot of sedatives, a lot of chemicals, and some of those materials are actually leaching out.

And they're actually prohibiting marine life to thrive.

Keep developing with out any regards to natural communities.

There is a tilting point for me beyond.

We cannot really go back in the coastal city of Tel Aviv, and Israeli startup wants to revolutionize our urban coastlines.

Their sea defences, a transforming, lifeless man made structures teaming ecosystems.

They do this by replacing standard concrete with their own special cement formulas, as opposed to regular cement based concrete.

Concrete includes certain elements that enhanced the growth of marine floor and found of plants and animals.

Our ad mix, which is kind of our secret sauce, is basically kind of sealing the concrete, making it less aggressive with the Marine environment that once we add it, we enable life to flourish in the lab.

Team run tests to identify what mixes will work best for marine life.

So we take really ice cube sized concrete slabs off different compositions, and we put larvae 2030 50.

Winning to have a lot of replicates were geeky scientists that we have to have a lot of replication and controls, and then within a few days or just a few weeks, we can get an answer on their preference.

So obviously, if they die, they have a very no taller and students specific concrete mix design.

And if they thrive or deferring, we can quantify that.

Concrete says it typically sees double the biodiversity of regular gray concrete, from fish and sea cat's pillars on their armor blocks to crabs on these tidal pools that sits on the shoreline.

This unit holds water during the low tide, so it's always moist, and therefore it has a very comfortable habitat for crabs and CNN, and ease and see stars.

Etcetera.

Thes pools have bean here for less than three months, and this is already what you can see.

It's covered with life.

See the rock around it, which has been here for probably 10 20 maybe even more years on.

Lee has a thing.

They're green algae, and that's it.

A swell is the composition of the cement mix.

The concrete designs its products specifically to the marine environment.

It will be deployed, create niches for endangered species or to develop nurseries like these oyster beds.

Final part of the equation is creating complex surface textures to mimic natural rock or coral, an environment that helps anchor young organisms when concrete elements are being cast.

A typical goal is to have a very slick surface very, very smooth.

The idea is to get the water to flow right across it.

When we were designing a concrete with a rough surface, we want to do the complete opposite.

We want to slow the water when they are crossing the structure so that the larvae can actually add here.

On attached to the surface, Concrete has to offer its clients more than just ecological credentials.

Over time, they've discovered that creating hospitable habitats for marine life adds another advantage, one that is surely hard to ignore.

We've seen evidence to the fact that the growth of the organisms on the concrete create kind of a layer of defense.

Just the addition of weight.

We can actually gain stability and strength over time.

This is the let's, say, the unit when we put in the water and this is after you're in the water and what you can see here is all the oysters are coming to be covering it.

We designed the units so they can withstand the forces and perform in terms of sexual performance.

But they can also be a backbone for ecologically enhancing company tested miniature designs in tanks full of real seawater, rocks, plants and animal life from around the world.

What we're looking for is the accumulation of causing carbon.

It's on the surface of the concrete, off, off, different mixes in different designs.

This is the process of biogenic buildup.

With time began, a buildup off council carbon, and that is a source for marine organisms on the surface of the country.

And we actually encapsulate the conference with a natural rock.

So when the organism die in case of a quarrel, it will die, and then another court will sit on it.

And that's how a reef is growing the hope that our man made structures could become stronger over time also means better economics units require less maintenance could therefore stay in the water for longer.

E concrete, though, is just a few years old, so it needs more time to re quantify the longevity of its products.

Company are certain their products are better for the environment, and not just in terms of improving biodiversity.

We're kind of trying to offset some of that immense carbon footprint of the concrete industry.

Construction is responsible for about 11% of global carbon emissions by adding a biological crust to their products.

E concrete prevent.

Some see a two from being released into the atmosphere for every kilogram off.

Carlton Carbonate being created by those marine organisms were offsetting 120 grams off Theo, too.

So think about mailing a port infrastructure or a city waterfront that is an active carbon sink.