7 Reasons Why We Need To Save the Coral Reefs

I have a love-hate relationship with the ocean and all its creatures – corals included.

A part of me is terrified at the idea of its immensity, and at how little we actually know about it. C’mon, it can get creepy.

colorful coral reefBut another part of me is fascinated at things like the alien-looking marine life.

Like, there are fish with lanterns on their heads. Just wow.

Then you have sea horses. The male is the one getting pregnant. They’re living in the 24th century.

And what about corals? And coral reefs? All those colors, all that life.

They buzz like busy cities.

You got little fish cleaning big fish, clownfish playing hide and seek amongst the anemone, shark gangs swimming around,…

Yes, I might have watched one too many animation movies about fish. But we cannot deny it: coral reefs are magical places full of life.

Before we get into the nitty-gritty, here you have some quick facts about coral reefs:

  • They are actually animals made up of thousands, MILLIONS, of tiny polyps that contain even tinnier algae in their tissue. These algae are the ones that produce oxygen through photosynthesis.
  • They host 25% of marine life, up to 2 million species.
  • Some of the oldest coral reefs are as old as 50 million years!
  • There are many many coral reefs across our oceans, mostly in the southern hemisphere. The largest one, the Great Barrier Reef covers over 2,300 km (1,400 miles) and it’s off the northeast coast of Australia.
  • Some coral reefs are so big they can be seen from space.



Another thing you should know is that they are going through a rough time.

Actually, close to 50% of the world’s coral reefs have already disappeared. And at this rate, 90% will have died before this century is over.

Did you know that the oceans take up most of the temperature from the sun, so the temperature rise due to climate change affects the oceans even more than the land?

And this is the main reason why corals are disappearing faster than everbefore.

Corals are extremely sensitive animals that, under the stress produced by the heat, expel the tiny algae living inside of them as some sort of defense mechanism.

Once the algae are gone, so is the main source of food of the polyps.

They end up starving and dying.

This is heartbreaking. No more buzzing coral reef-city life, no more little fish cleaning big fish.
They are shutting down and were doing nothing.

BUT I’m a firm believer that there are solutions for everything. And there are many many things you can start doing today to help the coral reefs. For example, try to reduce your carbon footprint as much as possible.

For now, I want to have a chat with you about the reasons why we should and HAVE TO take coral reef conservation serious.

Long story short: they are the base for marine life.

Imagine New York without skyscrapers. Ok, that is the ocean without corals.

1. Coral reefs produce a huge amount of oxygen.

And we kind of need the O2 to survive.

Reefs cover a teeny tiny portion of the scary immensity of the ocean floor: 0.0025%.

BUT they’re productive as hell, so they manage to generate half of the earth’s oxygen thanks to the little algae living in them

On a side note: did you know that only 30% of the oxygen we breathe is created by trees? The rest comes from the ocean!

I think this reason alone should convince everyone, but let’s see some more.

2. They absorb one third of the carbon dioxide we, humans, create

Do you know that expression about the amazon forest being the lungs of the earth? Actually coral reefs well deserve that title.

3. Coral reefs are the base of the marine food chain

Reefs are alive. They create their own environment.

Remember that I told you they host 25% of marine life? Coral reefs host all these animals and plants, and like that they become their environment, the place where they go about their lives.

These fishies choose reefs for a reason. There they have all the resources they need.

This environment becomes the base of the marine food chain. Where the tiniest plankton is eaten by still tiny fish that are eaten by bigger fish and so on.

Symbiosis at its finest, amiright?

So, what would happen without coral reefs? Will the food chain collapse? Will the next links of the chain progressively disappear just like the corals? Answer is probably yes.

4. And coral reefs provide food and money to many human communities

Middle-sized fish eat little fish, big fish eat middle-sized fish and we eat big fish.
According to the UN, coral reefs produce 17% of all globally consumed protein. But for many coastal countries or islands, around the reefs, this ratio is 70% and higher.

The fishing industry depends on coral reefs because many fish spend their “childhood” in coral reefs before making their way to the open sea.

It is true that fishing – mostly overfishing – can be very ethically controversial. But we cannot forget that human communities need those resources.

Also, the Great Barrier Reef generates more than1.5 billion dollars every year for the Australian economy alone, from fishing and tourism.

5. Medical investigation, and other types of scientific research

Coral reefs give smart science people information about climatic events, storms, human impacts, etc. over the past million years or so. How? Thanks to changes in the growth patterns of their skeletons.

coral bleaching proof

They can literally see how humans impacted their growth and when – it is something like “reading” tree rings. Wow, science.

Another great contribution that coral reefs do to science has to do with cancer treatment. Researchers have found out that they can use some substances found in corals to fight certain types of cancer.

6. They are great natural breakwaters.

I didn’t know what a breakwater was before writing this, but without them, most human settlements by the ocean would be f***ed.

They are basically structures made to reduce the intensity of waves and avoid extreme sea floor erosion, and thus the risk of any harm on human settlements.

Coral reefs provide this safety barrier for the coasts next to them.

7. They’re stunning when they’re not bleached

Visiting a coral reef is in my bucket list.

Like, look at this beauty.

corals before bleaching


I don’t want to go snorkeling to the Great Barrier Reef and – after summoning all my will and conquering my fear to the ocean – just find this spooky sight.


I want to see colors, that buzzing sea city life – and all that alien-looking stuff.

sea anemones and corals


I’m honestly amazed at how necessary coral reefs are for us.

But I’m also terrified at how little attention we pay to them. But out of sight, out of mind. Right?

If we saw a forest burning, we would panic, we would understand that something is not right.

We would try to do our best to change the situation.

We realize the power trees have to give us oxygen. But we don’t realize all that corals do for us.

Watching the documentary CHASING CORALS (LINK) really changed the way I look at the ocean. I really recommend you watch it.

There are many ways to help our coral reefs. You can donate money to Coral Gardeners, who “plant” new corals and help them grow.

But if you cannot spend your cash, why don’t you consider some lifestyle changes instead?

Remember that we, as individuals, have an incredible power to change things. It just takes you to take a step.

Corals need visibility, why don’t you start by sharing this post?

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