Wednesday, July 30, 2014

Why We Taste: A Brief History of "Thyme" and the Rest of Your Spice Rack


If you’d have told me yesterday that Rome’s been sacked and burned, entire civilizations have been enslaved, and current superpowers in the world’s infrastructure had all revolved around one humble spice named Pepper, I’d have looked at you like you were crazy. As it is at the time of this writing though, I wouldn’t be able to call you crazy, because now I know the bizarre truth behind the spice, and many others like it.
Also if you’d have told me that spice brought about the birth of Capitalism I’d have been awestruck. As it turns out, taste was an extremely integral part of our past, it’s a huge commodity in our present, and I have a feeling it will continue like this into the future. Its created monopolies, spawned atrocities, and enriched our palettes for millennia.
But what are spices? Actually, let me rephrase that…why do we taste spices? And more importantly, how do we taste? Today at TI&IT we’re going to break that down. We’ll talk about seven different categories of flavor; our “buddies” on our tongue that help us distinguish between them, and the strange (and often violent) history behind a few of your everyday spices. In fact, chances are, you’ve eaten some of the spices, or are about to eat them at some point today.
But before we dig into the spicy history of the East India Trading Company let’s talk a little bit about the how and the why of taste.

Not To Be Pretentious…But “Taste” Isn’t “Flavor”…


Despite popular belief taste and flavor are two separate entities, however, for the most part we use the two terms interchangeably. For our purposes today we’re going to outline the differences between the two so later on it is very clear what we’re talking about when we get into classifications.
Taste is a chemical response to gustatory stimuli. Gustatory stimuli would be the food we eat. When something is inserted into the mouth, small receptors on the tongue called papillae or more commonly “taste buds”, receive information from the object. These transmit signals to the brain based on the four major taste areas of the tongue:


The four commonly agreed upon taste sections of the tongue are sweet, salty, bitter, and sour. Obviously we know the differences in those tastes, French fries are salty, most candy is sweet, lemons are sour, and espresso is bitter. But what happens when a food doesn’t fall into one of those categories?
Well it turns out, regardless of what it is, it can be classified into one of those four categories, but there is a broader spectrum out there. This is known as “flavor”. Flavor differs from taste in one tremendous way. Taste is a single sense in and of itself. In order to achieve flavor two senses need to combine, namely taste and smell. The gustatory and olfactory responses are closely linked with one another. I’ll give you an example.
Remember the last time you stopped out to your friends for a barbeque? Remember the ribs he had cooking on the grill? They smelled incredible didn’t they? In fact, I’ll bet you dollars to donuts they smelled so good you could taste them long before they had even touched your plate. That’s because the sense of smell is closely linked to the sense of taste.
So now we know the difference between the two, but how and why do we taste?

No Tongues Created Equal


The why of taste is a simple answer. We taste to identify whether or not something is safe to ingest. Think about it. Have you ever taken a swig of sour milk unknowingly? Tasted pretty nasty didn’t it and I’ll bet you spit it out and threw the milk away? Good thing you did too, sour milk is bad for your stomach, and your taste buds were there to help you identify that threat.
The how of taste, now that’s another story. See, everyone’s taste buds differ from one another. Some have more, some have less, some are predispositioned to certain tastes that others find gross. Because of this it’s difficult for researchers to make any kind of definitive chart for taste. The only thing agreed upon are the four basic tastes we discussed earlier, salty, sweet, sour, and bitter.
So how does the tongue differentiate between these different tastes? It’s pretty cool, let’s break it down real quick:


See those little bumps on the tongue in the picture above. Those are the Papillae we talked about earlier in the beginning of this article. Most people think that those are the taste buds…and technically that’s misleading. See, sometimes they can contain taste buds, but gustatory receptor cells are much smaller and not visible to the naked eye. They are generally housed in clustered in between the papillae.
The papillae lock food in place and keep it positioned during mastication (minds out the gutter…it means chewing…). During that period food particulates get trapped by gustatory hairs and delivered to the receptor cells. From there a series of nerves send signals to the cerebral cortex and interprets the information from the tongue, along with information from the nose, as flavor.
There’s a common myth that, “the tongue is the strongest muscle in the human body.” Well…it certainly is a muscle. But by no definition of the word “strongest” does the tongue hold any title. Don’t let it fool you though, while it may not be a comparatively strong muscle, flavor is a powerful motivator. In 408 A.D., Barbarians invaded Rome and demanded a ransom of pepper.
Yes…pepper. Like pepper, pepper. The same black granules you put on your eggs this morning.
Not only did they sack Rome for the pepper, after the Romans paid the ransom, they burned the place down and took the rest! Slavery has been driven all around the world due to the demand of Sugar. (Plantations anyone…?) Salt has been used as a preservative and flavor enhancer for centuries.
Oh yes. The tongue is a neat sensory organ, but the history behind what it’s capable of tasting is much richer than any chocolate mousse you’ll ever taste. From spices fit only for a King, to sweet commodities that take the world by storm, everyone has been trying to sate their palettes for centuries. No other company more so than East India Trading Company.
But we’ll get to them in a minute…first, let’s talk about their number one product.

“I’ll Trade You One Human For One Pound of Pepper”


Ah yes, pepper. A spice that at one time was so valuable; a pound of black pepper could buy a serf in medieval Europe his freedom. Spoiler alert, there weren’t very many free serfs roaming around. Long ago, pepper was more valuable than gold, which makes sense, as its practicalities were far more extensive. Not only is pepper a flavor enhancer, it is also a preservative.
In medieval times, pepper was reserved only for royalty. Princes for example would take up a hunt in pursuit of boar. When one was brought down it would be gutted, and its insides would be thoroughly rubbed with pepper. Not only did this make the roasted boar taste better, it would also help save any leftover meat from spoiling any quicker than need be. It was the spice of Kings that transformed this.


Into this:


There is some debate in the scientific and historical community about whether or not pepper was truly used as a preservative. It doesn’t have nearly as many stabilizing qualities as salt does. Nonetheless it didn’t stop pepper from being a hot commodity. It spawned conquests to India, spurred the “discovery” of North America, (You can’t discover somewhere that was already inhabited…sorry U.S. …), and actually helped fund the building of America as it is today.
It also spawned the East India Trading Company. Not only was this corporation the villain of the second “Pirate of the Caribbean” film, they truly were a villainous company in real life. Don’t like capitalism or shareholding? You can blame that on the EIC and the Dutch version, the VOC. It wasn’t just spice they had their hands in. Jewelry, tea, cosmetics, coffee, even human beings were trafficked by this company. At one point their grip was so ironclad on the Pepper Trade that they were classified as a monopoly. Not bad for a bunch of old 16th century white dudes. (That was sarcasm…)

The V.O.C. and Outsourcing Murder

The systematic extermination of an indigenous population can be nasty business, so naturally in 1607 when the Dutch needed it done, they sent in just the right sociopath. Enter Jan Pieterszoon Coen. Many like to claim he began slaughtering the people outright; however, here at TI&IT we explore both sides of the story, so allow me to clear up this historical matter real quick before we continue.


Coen arrived in the Banda Islands of Indonesia in 1607, yes. The Dutch forced the people to work for very little, almost slavery status, and offered useless trinkets in trade, yes. The people of the Islands grew very tired of the Dutch taking advantage of them, yes.
So after all this buildup the Chiefs called a meeting with Coen and his finest men in which the Chiefs, known as the “Orang Kaya”, ambushed them and killed 40-50 (texts debate over the actual number) of his men. Naturally, this really peeved a psycho power-hungry governor like Coen into a fit of madness. He returned several years later with real soldiers this time and Japanese mercenaries. He rounded up all of the Chiefs and had them executed and impaled as a warning to any other villager who may want to try and stage another uprising against him.


Coen could have stopped there but he didn’t.
He ordered the people to sign a treaty, one which was easy to violate and impossible to follow. As a result of the arbitrary violations he ordered the extermination of the populace of the Banda Islands. 14,000 of the 15,000 native people lost their lives.
All in the name of Nutmeg and Cloves...
But we all know you can’t run a business solely on the company policy of genocide. So Coen decided to outsource his labor from the neighboring islands, by importing the innocent inhabitants as slaves. He repopulated the island with sadness and tragedy, but he sure did make those old rich white dudes even richer, and we all know, that’s what’s most important. (Once again…so…much…cynicism…)
But why all the murder and mayhem? What made nutmeg so important?
Well for starters it was a status symbol. If you could afford nutmeg you could purchase a London brownstone. In fact, much in the same way pepper could buy people, nutmeg could purchase property. In medieval Europe, around 20 kilos of nutmeg could buy you a rather nice, fully furnished flat. Not too shabby.
But Nutmeg had other uses as well. To understand them, we need to talk a little bit about the spice itself and how it grows. Let’s start with the tree:


Nutmeg grows on a tree, and its seed pod bears a remarkable resemblance to the way the seed pod of a horsechestnut (here in Michigan we call them “Buckeyes”) is set up. There are some differences however. First, and most noticeably, the outer shell of Nutmeg doesn’t look like a Sea Mine:

(The Submarine Mine: AKA Explosive Underwater Ball of Death)

But the sea mine does bear a remarkable resemblance to…

(The Horsechestnut: AKA Spiny Shell of DEATH)

Anyway I digress…this is what a ripe Nutmeg fruit looks like:


Nutmeg has several layers that must be peeled away in order to get to the spice. The outermost layer is the fruit. The flesh of the nut can be pulped to make jams and candies. The next layer of Nutmeg is called the “Mace”. That’s the red stuff you see in between the two cracked halves of the outer shell:


But even that isn’t thrown away. Mace is used in culinary dishes worldwide. Traditionally, it’s been used in the cosmetics industry because it contains the scent of nutmeg that can be extracted. It’s also a classic example of holistic medicine, said to aide in a variety of ailments, ranging from diarrhea to schizophrenia and pain reduction. (Although I don’t recommend coming off Abilify in favor of the spice rack for anyone suffering from mental disorders…)
But there’s another layer, (Criminey, it’s like a Matryoshka doll I swear…). Once you peel off the Mace you reveal a small, innocuous looking, dark brown nut. If you were to bite into this you would be greeted with an extremely bitter taste, almost foul. Why? You guessed it, because there’s another layer:


When all is said and done, that tiny little seed pictured above in the top of that little pyramid, roughly the diameter of an American Penny, brought the end of an entire civilization. Think about that next time you go to sprinkle some on your egg cream this upcoming holiday.
So if pepper can buy humans…
And nutmeg can bring out the genocide in people…
What the hell can sugar do???

Bittersweet Truth: The Raw Past of Sugar


Turns out, sugar can enslave almost an entire continent.
And create the first example of a human pyramid scheme.
Well…you know the American way…go big or go home…
Slavery was nothing new by the time sugar came into the picture. It had already been a long standing tradition of a conquering army to enslave a populace. But between 1505 and all the way up till the beginning of the 20th century, Dutch and English “entrepreneurs” elevated the brutality and ferocity of the slave trade to a disgusting and disturbing art form.
Slaves were brought from Africa to North America to work on sugar cane plantations. This sugar was then taken to mills, where it was distilled into things like rum and molasses. The slavers would then take the rum back to Africa where anywhere between 110-130 gallons could be used to purchase an adult slave. Didn’t have enough for a full grown man? Only 80 gallons left in the hold? No reason to leave empty handed! For that amount you could buy a child.
In fact, sugar was so important it may have cost Great Britain a very important war. It’s arguable that while Great Britain was covering its “assets” on its sugar islands, they lost 13 colonies during the American Revolution. Many have said that the war would have turned out differently had Great Britain thrown all of its might against America instead of defending its sugar stores.
So what made this “White Gold” as the colonists called it so darn valuable?
Have you ever had sugar?
It’s tasty, delicious, and always leaves you wanting more.
Through trade with various nations the world became hooked and dependent on sugar. All because, “it tastes good.” Wars have been fought over sugar. Hundreds of millions of livelihoods have been lost because of it, and slavery still continues as a direct result of sugar demand in certain parts of the world to this day.
It’s amazing what people will do, all in the name of a few “buds” on their tongues.

-       Ryan Sanders


Hope Sophie Monk wasn’t too hot and spicy for you. I also hope you enjoyed reading this article on the history of Spices and how our tongues work. As always please feel free to share this around on Twitter, Facebook, Reddit, Tumblr, or any other social media site you’re on, and don’t forget to subscribe to the blog for more daily science! To know more about any of the topics discussed above feel free to follow the links below. Happy Learning everyone!

-       Documentaries by the BBC on various spices are listed below.












Tuesday, July 29, 2014

The Tree of 40 Fruit: Nature + Science = Art!


With its bright and vibrant colors, the Tree of 40 Fruits looks like something out of a Science Fiction movie on a distant planet. But it turns out; this remarkable looking tree grows right here on our humble little blue ball. What’s more, not only are its leaves one of the most gorgeous displays nature can provide, it actually lives up to its name, producing 40 different varieties of stone fruits every season.
So how does this awesome little tree accomplish this?
Science of course!
And a little help from an artist slash boyhood farm-boy, Sam Van Aken.
Today at To Infinity and…In Theory we’re going to talk about the tree of 40 fruits, the different fruits it produces, and where you can go to see them. We’re also going to talk about “genetically modifying” nature to be a little more productive and examples of it that are already around us every day. We’ll also explore some of Sam’s other masterpieces from other exhibits.
But first, let’s talk about this tree…

I’ve Got A Lovely Bunch of Coconuts…And Plums…And Almonds…And Peaches…


Okay, okay, so the tree can’t produce coconuts. But as we mentioned before it can grow 40 varieties of stone fruits. What are stone fruits? Things like peaches, nectarines, plums, and cherries are stone fruits. Stone fruits are classified by their seed pouches, in the case of the aforementioned fruits, a “pit”. This pit resembles a rock, hence the name “Stone Fruit.”
So other than plums and cherries what else can this tree do? How about peaches, apricots, almonds, and many rare and exotic species? The specimens were acquired from the New York Agricultural Experiment Station by Van Aken for his grafting art project. The orchard there was about to be torn out and Sam was able to purchase the lease in time to get access to the plants and begin his Frankenstein Fruit Tree project.


In an interview with the website “Epicurious, the author of the article asks Sam Van Aken, “What is the Tree of 40 Fruit and what inspired the project?” Van Aken’s response is as follows:

“At the time this project began I was doing a series of radio hoaxes where I hijacked commercial radio station frequencies and played my own commercials and songs. In addition to becoming acquainted with FCC regulations I also discovered that the term "hoax" comes from "hocus pocus," which in turn comes from the Latin "hoc est enim corpus miem," meaning "this is my body" and it's what the Catholic priest says over the bread during [the] Eucharist, transforming it into the body of Christ. This process is known as transubstantiation and [it] led me to wonder how I could transubstantiate a thing. How could the appearance of a thing remain the same while the reality changed? And so, I transubstantiated a fruit tree. Through the majority of the year it is a normal-looking fruit tree until spring when it blossoms in different tones [of] pink, white, and crimson, and late in summer it bears [more than] 40 different types of fruit”. To read the full interview click here.

So there you have it. He transubstantiated a tree. Except there is one problem with that…the literal translation of Transubstantiation is “the changing of one substance into another.” In his reference to the church he uses the “bread is my body” as his citation. While I don’t want to undermine the brilliance of what Mr. Van Aken has accomplished, I also don’t want to mislead people into believing he turned the tree itself into 40 kinds of fruit, that would be an example of transubstantiation, and as far as metaphors to describe the art aspect go it’s absolutely brilliant, but this is an example of something else altogether.
Genetically Modified Organisms!

Oh Sure…GMO’s Aren’t Scary When They’re Pretty…



Ha! Ha! Okay, I was totally kidding. But some of you probably thought I was serious for a second. This is exactly why I feel it’s important to clarify the very distinct differences between a genetically modified organism and the tree that Van Aken has created.
Your standard GMO has been changed all the way down to its core cellular structure. Every organism is comprised of sequential information. It’s called DNA. Our human DNA tells our unborn child what color his or her hair will be, whether or not they will be tall or short, freckles or moles, etc. These are called traits.
In a genetically modified organism the genetic code has been altered in some way, creating a set of predetermined traits based on whatever it is the researcher is trying to accomplish. These genetic traits stay with the organism and are passed down to future generations, be it through breeding in animals or seeds in the case of plants. In a GMO, its altered traits become hereditary.
On the contrary, in what Sam Van Aken has done there is no change to the plants genetic structure of a hereditary nature. If you plant a cherry pit properly, you’ll get a cherry tree. If you plant a plum, you’ll get a plum. From one single seed you will not be able to recreate the Tree of 40 Fruits. This is because it hasn’t been genetically modified, instead it has been grafted.


Where genetic modification is done in a laboratory with high-tech equipment used to alter genes on a molecular level, farmers and horticulturists alike have been using grafting for centuries to accomplish much the same task. One plant, typically called “The Rootstock”, is cut when it reaches a certain phase in its growth cycle to be spliced into what is known as “The Scion”.
The stock is usually bred for disease resistance and better growth. The Scion is used to convey the characteristics of the final fruit, be it Tomatoes, Potatoes, Peas, Olives, or other stalk and trunk based plants. If this were an example of GMO’s then the next season all the farmers would have to do is plant the seeds from the previous harvest. This isn’t how it works however, as grafting needs to be done the next season to achieve the same results.
It’s also important to remember that this procedure isn’t as simple as just cutting and taping two plants together. It’s a very delicate process in which the vascular structure of the two plants has to align perfectly in order for them to fuse into one. If this isn’t done correctly, both the rootstock and the scion will die. To see a a "whip-grafting" technique and how its employed on a mango tree check out the six minute video below.




From Mesopotamia to 19th Century Wine Bottles




That’s right. Those are ancient stone tablets, and yes, that’s writing. Imagine having to leave a note for your mom in Biblical times that you have to stay after school. Talk about a pain in the butt. In fact, keeping with the theme in which plant grafting was created, those are ancient Sumerian tablets which have the names of Mesopotamian leaders inscribed into them. Neat huh?
Except there’s a lot of debate within the scientific community over whether or not horticultural propagation originated there or not. Some would say that it began in 1800 B.C., others are willing to budge a bit to ancient Biblical and Hebrew texts vaguely referencing the technique dated between 1400 – 400 B.C.
The first verifiable proof of this technique in writing however goes to the followers of Hippocrates in 424 B.C.:

Some trees however, grow from grafts implanted into other trees: they live independently on these, and the fruit which they bear is different from that of the tree on which they are grafted. This is how: first of all the produces buds, for initially it still contains nutriment from its parent tree, and only subsequently from the tree in which it was engrafted. Then, when it buds, it puts forth slender roots in the tree, and feeds initially on the moisture actually in the tree on which it is engrafted. Then in course of time it extends its roots directly into the earth, thorough the tree on which it was engrafted: thereafter it uses the moisture which it draws up from the ground.”

Grafting found its way to Greece, Persia, Rome, France, Italy, and the Middle East. Books were published, and techniques were formed. It was a tremendous success and a great way to improve the stability of the agricultural system. It survived the Middle Ages, the Renaissance, and even Thomas Jefferson made note of performing grafting in his own personal garden journal in 1767.
So why is this so important to the farming industry? Just take a look at this guy:



That menacing opalescent nightmare above is called a Grape Phylloxera, and they are some nasty little critters. Don’t let their diminutive size fool you. In large numbers the capabilities of these insects can be devastatingly catastrophic. For example, they can take a vineyard that looks like this:



And turn it into this:


In 1864 France that’s exactly what happened. A Phylloxera infestation caused an epidemic that put a squeeze on the grapes industry and crushed the vineyards. How was this hurdle that nature threw at them overcome? By using asexual propagation (grafting) of course! By grafting insect resistant grape rootstock onto the standard fruit bearing scion, French farmers were able to save their crops eventually. While Phylloxera hasn’t been eradicated entirely, it has at least been curbed…for now.
So now we know the when, the how, the why, and the what. There are just two questions that remain. First and foremost being, what inspired Sam Van Aken’s interesting art project, as it clearly wasn’t spawned out of necessity for survival, and where can we see some of these amazing trees.

Painting Trees? Pfft! That’s so Bob Ross…


I am a lover of art. However I am also a lover of food. That does not make me a chef. I am neither cultured nor pretentious enough to critique the man’s artwork. That being said I can say I like it. I may not understand what he’s trying to accomplish (or the way he expects me to interpret his pieces) but I certainly know I found his pieces visually striking, unique, and difficult to not only conceptualize, but also to bring to “fruition” (pun intended).
With all that in mind I’m going to post pictures of Sam Van Aken’s artwork and the titles for each piece, however I will not offer up an interpretation. I will also leave a link at the end to his personal website if you want to view the backstory of each piece and what they represent.

(New Edens)



(Thumper)


(A Hole In The Sky)

(Tree of 40 Fruit)

(Oh My God)

(The Many Deaths of Willem Dafoe)

Sam Van Aken has others as well. To see a complete list of his works, pictures, and explanations for his macabre art style you can visit his website by clicking here. Now for our last question of the day. Where can we see these trees?

Franken-Tree on Display

You’ll have to do some digging, but the trees are all on display in various locations across the United States in museums and nurseries. Locations include Louisville, Kentucky; Colby College Museum Of Art Waterville, Maine; Pound Ridge, New York; Hotel Bentonville in Arkansas; San Jose Museum of Art in California; and a couple other locations. They bear fruit from July to October and the amounts are said to be manageable enough so as not to be overwhelm the consumer.
I don’t know about you guys, but I can’t wait until these trees are commercially available for people like you and me to toss them in our backyards. Not only are they beautiful, they’re economical as well.
I’ll take forty of ‘em.

-       Ryan Sanders



Thanks for reading everyone! Hope you enjoyed the article today! As always, please share this around and spread the knowledge! If you want to know more about anything discussed above today feel free to follow the links below. Happy Learning!

-       Wiki on plant grafting








Monday, July 28, 2014

Deadly Waters: The Killer Beneath Lake Kivu


We’ve all seen the disaster films. “Armageddon” taught us that all we need is Bruce Willis and a rag tag team of oil riggers to save us from a meteor-related extinction. “The Core” showed us what happened if our planet stopped spinning, (and we learned a valuable lesson about not playing with Earthquake machines.) Other films like “The Day After Tomorrow” depict a frozen wasteland or “Waterworld” in which all the ice caps have melted and we’re completely submerged (epic foreshadowing Congress…)
But what happens when lakes start killing people?
While it’s probably not going to make a blockbuster appearance at the box office any time soon, the reality of Limnic Eruptions, also referred to as Lake Overturn, is a very real, and very deadly one. So how do lakes go about killing people? I’ll give you a hint, it’s not because people drown in them, and it isn’t disease hiding in the water. Turns out, there’s something even more deadly lurking deep down below.
Today at TI&IT we’re going to talk about Lake Overturn, and two natural disasters in the early and mid-1980s that gave us great insight into this destructive phenomenon. We’ll also talk about one lake that, if it were to explode, would kill over 2.2 million people in process and the procedure for eliminating this issue. We’ll also briefly touch on some of the other locations where we can find similar situations throughout the world.
But first, let’s talk about where this indiscriminate killer has already left his mark. And to do that, we need to travel to Africa. Specifically, Cameroon, to a small lake called Monoun. This is where the noxious assailant first made his appearance, in the form of an innocuous, little white cloud.

That Ain’t Casper


See that mass of white accumulated at the bottom of the lake in the photo above? No, that isn’t from some factories smokestack. It also isn’t a reflection of light off the lake. It’s something far more sinister.


No…it’s not Casper the Friendly Ghost either… It’s a noxious gas; well, maybe not as toxic as you might think. We actually expel it every time we draw in a fresh breath.
It’s carbon dioxide.
But in 1984, in Cameroon, that little white cloud was responsible for the death of 38 people bordering the lake. How did this happen you ask? Well, we may exhale Carbon Dioxide, but that’s just the thing, we get rid of it. When exposed to it in massive quantities, Carbon Dioxide can completely displace the air due to its heavier density, effectively choking out the oxygen in the environment around us. In 1984, that’s exactly what happened. While the villagers slept, the Co2 sunk over the ridges of the mountains above and moved slowly through the village, displacing the air and asphyxiating everyone.
But this was just a shadow of the dangers to come. Two years later in 1986, a similar event not far away would dwarf the tragedy of Lake Monoun in every way imaginable. On August 21st, Lake Nyos spewed a gigantic cloud of gas upward from its depths. The cloud crept over the villages surrounding the lake while the people slept. By morning, roughly 1,800 people were dead, stifled of air in their sleep. Livestock lay dead all over the roads and the countryside.
Fear and panic swept through the area. Everything from chemical attacks to angry Gods was thrown out as a possibility for the mysterious deaths occurring around the lakes. Villagers had reported seeing the white cloud moving across the lakes. In the aftermath of the Nyos tragedy there were only six survivors, and they had suffered peculiar “burns” all over their bodies. These lesions were highly inconsistent with anything people had seen before.



These “burns” would only make sense if the Co2 had been superheated, but seeing as the corpses of the other victims showed no signs of scalding trauma this theory held little weight. It would take a team of brilliant researchers, and a radical new theory, to explain the tragedies at Nyos and Monoun.
Good thing the world had both of those up its sleeve.

Nyos’ Secret Volcano Lair



After the incident at Monoun a group of researchers led by Scientist J.C. Sabroux took to the waters to find out just what had occurred. They paddled out the center of its surprisingly calm waters and began lowering their equipment in. Basically the tools used were tubes with openings used to gather samples from the deepest sections of the lake, but as they drew the tubes to the surface something strange was happening, gas bubbles were rising up ahead of the equipment, making the surface look like the surface of a carbonated beverage.
The bottom of the lake was filled with Co2, this didn’t make any sense to the researchers until they realized something. They were sitting on a volcano. Volcanoes are well known for their violent history of erupting various hot gases into the atmosphere, chief amongst them being Sulphur and Carbon Dioxide.



 There was just one problem, this lake hadn’t erupted. In fact, seismographs would indicate this volcano wasn’t even all that active. So how was this Co2 getting to the surface? Turns out the volcano was just venting.
Just because the volcano doesn’t have any active plans to decimate the village below doesn’t mean it doesn’t have to let off some steam. Through underground vents called Chimneys, the volcano sends the gas upward to the surface where it mixes with ground water. As the ground water mixes with the lake water the gas is intermixed as well and sinks to the bottom. The Chimneys also directly feed the lake from below as well and the high pressures of the great depths keep it trapped at the bottom.
Until an Earthquake does something like causes a rock slide to send tons of heavy and dense material crashing down to the depths. As we all know from freshman year Earth Science class, when we drop dense materials into a glass of water it displaces it. And if you drop a rock into something carbonated (like a Coca-Cola for instance) it causes the Co2 to get riled up and rise to the top of the glass.



So when the rock slide sent those stones crashing into the water and to the bottom, it stirred up the Carbon Dioxide. Excited, it rose to the surface and formed a cloud, killing the villagers. The ones it didn’t kill suffered burns consistent with overexposure to carbon monoxide. What ended up happening was when the gas shut their bodies down it stopped circulating blood to the skin first. As a result the skin cells began to die and blistered up.
Now there are a lot of lakes that contain gases throughout the world. What made Nyos and Monoun so special? Well they were Meromictic Lakes, which means they were stratified, they didn’t intermix. Allow me to explain this a bit further.
Most lakes throughout the world are Holomictic or Polymictic. What this means is that through certain means these lakes stir themselves up to re-oxygenate the water at deeper levels. Wind is a good example of this, as it pushes along the surface of the water it stirs it up aiding in current flows, this causes the lake to turn itself over, preventing gas buildup.
Another method for lakes turning themselves over is temperature shifts. Optimally at 4 degrees above freezing (32 degrees F) the water on the top will sink to the bottom because it’s now heavier than the much warmer water below. This is why during winter months fish tend to school around the bottom of lakes, the water there is more oxygen rich. The warmer water rises to the top to start the process over again.
Tropical lakes like Nyos and Monoun are calm and warm year round and don’t receive the benefits of Polymictic lakes. As a result, dangerous gas buildups can occur. In 1987, Sabroux and his team announced their findings to the world, coining for the first time, the term “Lake Overturn.”
So now that they knew what the problem was, how the heck do they fix it?

Degassing: Like Xantac For Lakes!


 So if the waters of Monoun and Nyos don’t intermix and instead remain stationary year round how do we fix the problem? Quite simple really. They installed a series of pipes throughout the lake that reach the bottommost section of the waters, hook them up to a pump, and manually vent the water to the surface. The Co2 rich water at the bottom is forced safely up through the series of pipes. Once it reaches the surface the gas is released into the air in harmless amounts and the water cascades back down to the lake.
A lake of Monoun’s size only needs one or two of these pipes to not only keep it at safe levels but within a course of five years, almost completely eliminate the gas. Nyos will cost more money however being that it’s much larger and requires six to eight pipes to accomplish the same feat.
But what about the deadly giant Lake Kivu near Rwanda?
Kivu is roughly 2,000 times the size of Nyos and should it decide to go through a Limnic Eruption (Lake Overturn) it would take the bordering population (around 2.2 million people) with it. And there’s an even bigger problem still. Lake Kivu is host to an even deadlier monster at its depths.
Just above the layer of Carbon Dioxide at the bottom is another gas, Methane. Those of you familiar with chemistry know that Methane creates an even bigger problem than Co2, because unlike Carbon Dioxide, Methane is explosive. It’s a fossil fuel; in fact, Bralirwa Brewery in Rwanda along Lake Kivu has been using this naturally occurring fuel to fire its equipment since 1963.


Unfortunately, while this is genius, it doesn’t chip away at the methane content fast enough to bring it down to safe levels. International efforts are underway to fund a project which will harvest the methane from the lake to be used as a fuel source. Venting the Co2 will undergo a process like Nyos and Monoun, but Kivu will be far more costly because of its size.
Whatever they choose to do and however they choose to do it, it needs to be done soon. In the early 2000’s a volcano bordering Kivu erupted sending molten magma pouring into the lake. Had the lava reached the layer containing the methane it’s likely a highly explosive reaction would have occurred and the entire population along the lake would have been killed. Case in point:



Still don’t believe me? Fine, don’t take my word for it. But you should certainly listen to the distinguished Professor Robert Hecky. When he was working for the University of Michigan in the United States he had core samples drilled from the deepest parts of the lake and his findings were disturbing. It turns out every 5,000 years or so the gas buildup gets so great that a Limnic Eruption is inevitable, and we’re just about due.
The good news is that since the breaking of this news, the scientific community and energy entrepreneurs worldwide have been chipping in to get at the methane below the bio-line of Lake Kivu. With any luck a violent eruption like the ones seen in the distant past won’t occur in Rwanda again.
And that’s great news. Because personally, I think they’ve had enough bad luck.

So…You Said There’s More of These…?


I did, and they are located all over the world. However, not all of them produce gas levels like Kivu, Nyos, and Monoun. As a result, while they don’t turn over, they don’t pose a threat to the populations in the surrounding areas. From Lake Vanda in Antarctica:


To Jellyfish Lake in Palau on the Asian continent:


Even The Black Sea, bordering the countries Russia, Romania, the Ukraine, Georgia,      and Turkey is considered to be Meromictic:



But don’t fret. If you live on the border of any of these lakes or other Meromictic ones you needn’t worry. As I said above, these don’t contain the gases necessary to provide the devastating effects Kivu is capable of. If you want to see more Meromictic lakes check out the Wiki by clicking here.
Thanks for reading everyone!

-       Ryan Sanders




Thanks for reading everyone! Hope you enjoyed the article today! If you want to read more about any of the topics discussed above feel free to follow any of the links below. Don’t forget to share this around on Twitter, Facebook, Tumblr, Reddit, whatever other social media exists nowadays that I don’t know about yet! You’re continued support is what keeps me doing this! Thanks again everyone!

-       PBS blog on lake Kivu