Author: Gordon Weaver

Oxygen Consumption Will End Up Suffocating Most Life On The Planet

The oxygen is the element of life, being responsible for our breathing process. In other words, it is essential to our life, after all we would not be able to survive without breathing. So far, life on our planet is flourishing because the Earth is rich in oxygen. However, scientists have predicted that in the future, Earth’s atmosphere will once again be rich in methane and low in oxygen.

It’s not a thing to worry about right away, as it won’t happen for over a billion years or more. However, when this change comes it will happen very quickly, as the study suggests.

This change will cause the Earth to return to a place similar to what was known as the Great Oxidation Event (GOE), which happened approximately 2.4 billion years ago.


The researchers who carried out this new study also said that atmospheric oxygen is unlikely to be a permanent feature of habitable worlds in general. This aspect has direct implications for efforts to detect signs of life in space.

“The model projects that a deoxygenation of the atmosphere, with atmospheric O2 dropping drastically to levels reminiscent of the Archean Earth , will likely be triggered before the onset of humid greenhouse conditions in the Earth’s climate system and before extensive surface water loss from the atmosphere. “, wrote the researchers.

When that happens it will be the end for humans and most other life forms that depend on oxygen to live. This is one of the points where figuring out how to get off Earth in the next billion years is important.

The researchers made detailed models of the Earth’s biosphere. And they took into account the changes in the sun’s brightness and the decrease in carbon dioxide levels as the gas is broken down by heat levels. All this to be able to reach their conclusions. And less carbon dioxide means fewer photosynthetic organisms, which in turn results in less oxygen.

No oxygen

Previously, scientists had predicted that increased radiation from the sun would dry up the planet’s ocean waters in approximately two billion years. However, this new model, which is based on just under 400,000 simulations, shows that oxygen depletion will kill life forms first.

“The drop in oxygen is very, very extreme. We’re talking about a million times less oxygen than today,” said Earth scientist Chris Reinhard of the Georgia Institute of Technology.

What makes this study relevant today is the search for habitable planets outside the solar system. According to the researchers, it is possible that it is necessary to look for other biosignatures besides oxygen to have a better chance of detecting life.


According to calculations made by Reinhard and environmental scientist Kazumi Ozaki of Toho University in Japan, the oxygen-rich and habitable Earth’s time could end up lasting only between 20 and 30% of the planet’s life in total. Since the microbial life will last much longer after the human being is gone.

“The atmosphere after major deoxygenation is characterized by high methane, low CO2 levels and no ozone layer . The Earth system will likely be a world of anaerobic life forms,” concludes Ozaki.

How are Graduations In Different Parts of The World?

The dream of many people is to grow up, finish their studies, go to college and pursue something they’ve always wanted and thus spend the rest of their life working on what they really like. And for that to happen, a lot of things consequently happen too. One of those things for sure is the graduation moment, as it marks the end and beginning of a lot, of an incredible period that has passed and a bright future that is to come. The celebration of this moment is “individual” and different in several places and we even get scared when we see some of these graduations.

Perhaps this is the most special moment in a student’s life. Graduating from kindergarten, high school or college, it doesn’t matter, it’s always a beautiful victory. This is because it marks the end of a period full of effort, discoveries and dedication. As mentioned above, the celebration of graduations tends to be different in every corner of the world. In some countries, this moment is extremely curious, funny and quite different from the graduations we are used to seeing in Brazil, for example. And it was thinking a little about this that we decided to bring this article.

The newsroom of Fatos Descoberta sought and then listed, for you, dear reader, how graduations are in some parts of the world. If you know of any that we don’t list here, send them to us in the comments below. Take the opportunity to tell us about yours and share this article with your friends. Without further ado, check with us below and surprise yourself.

How are graduations in different countries

1 – University of Padua, Italy

At the University of Padua, Italy, graduation celebrations are different. Students usually walk the streets in a relaxed atmosphere. Some of them even dress up or play games with eggs and paints.

2 – Kanazawa College of Art, Japan

Upon graduation from this Japanese arts college, students can dress according to their preferences. The result of all this is quite funny. Some students, with their extreme creativity, go dressed as cartoon characters and even some bizarre things, making the ceremony even more iconic.

3 – University of Notre Dame, Indiana, United States

A few years ago, students made special decorations on their chapels. All this so that their families could recognize them in the crowd. Today, the tradition has changed so much that students wear real sculptures on their heads to stand out. It’s a funny job and quite remarkable.

4 – Russefeiring, Norway

That’s the name of the Norwegian high school graduation party. On the big day, they wear clothes in the colors of the country’s flag, rent sound cars and party all over town. It’s a unique event.

5 – Queima das Fitas, University of Coimbra, Portugal

This is one of the oldest traditions in the world. Trainees receive ribbons with specific colors depending on the course they have taken. Before starting the ceremony, they burn the tapes to kick off the Queima das Fitas celebrations.