Seabeds on the oceans are literally melted and what is the reason?
What did the sandy bottom melt? The problem is that the sea floor is not only sand.
The ocean is not only an important factor for the Earth, but also the savior of this planet.
Why? Because of the vast amount of water in the oceans is a place to hold a huge amount of carbon, which helps reduce the amount of carbon dioxide in the Earth's atmosphere. If not for this function, our planet's temperature must have increased by 36 ° C since the Industrial Revolution in the 20th century. And for those who do not know, the current level of increase is only 1 ° C only people have had to suffer to hold it back.
The ocean is a huge CO2 reservoir.
Most of the carbon is absorbed in the form of dissolved CO 2 in water. However, a small part of it reacts with water, forming carbonic acid (H 2 CO 3 ) . And the reason that acidity is controlled is due to the thick calcite (CaCO 3 ), which is made up of bones and grass species in the ocean bottom. This calcite layer has neutralized the acid produced, so that the acidification of seawater does not happen too quickly.
However, according to a recent study, the current amount of CO2 is too high, and the acidity in seawater is also greater than ever . Consequently, the seabed calcite layer is being dissolved - literally.
Specifically, experts from McGill University (Canada) tested a model to determine the frequency of calcite dissolved in the following centuries. The results found are ominous.
"The rate of carbon dioxide released in the atmosphere is currently at the highest level in history, faster than the period of dinosaur extinction. This speed is faster than the ocean's ability to solve, and it is causing concern too. ocean acidification in the future " - quoted Olivier Sulpis, the study author who is completing a doctoral thesis at McGill University's Department of Earth and Planet Science.
Acid concentration in seawater is also greater than ever.
However, it should be noted that McGill's research was done in a small-scale laboratory, because the study of the occurrences of the seabed is "difficult and very expensive". In other words, this study is not really evidence of what's happening on the ocean floor, but for reference only.
However, Sulpis believes that this is still a warning. This effect has yet to happen, because it takes decades for CO 2 to reach the sea floor. It is only with the fast CO 2 discharge rate that in the future, the fate of the calcite layer on the ocean floor is still ominous.
Consequently, when this calcite layer disappears, it is still unclear. Just know that the effect it causes can be a chain, affecting an entire ecosystem. David Trossman - an expert from the University of Texas-Austin - once said: "Just as it affects not only a white bear, the acidified ocean is not only bleaching the coral alone."
The study is published in the Proceedings of the National Academy of Sciences.
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