Carbon pools, you know? The largest carbon reservoir on earth is actually under our feet

Most of the carbon on Earth is probably located in the outer core of our planet.

This finding may explain the difference in core mass.

Earth's liquid outer core may be the largest pool of carbon storage on the blue planet.

At 0.3 to 3 percent, this may seem small, but given the thickness of the entire outer core (1,355 miles (2,180 kilometers)), we would get a huge amount of carbon - about 5.5 to 36.8 grams (these numbers would be followed by 24 zeros!)

"The carbon present in the Earth's outer core will help us solve the mystery of the mass of the Earth's outer core," the scientists said.

"Understanding the composition of the Earth's core is a central question in solid Earth science," Mainak Mookherjee, a co-author of the study, said in a statement. Mookherjee is an associate professor of geology in the Department of Earth, Ocean and Atmospheric Sciences at Florida State University. "We know that the Earth's core is made of iron, but iron is significantly denser than the core."

As a result, scientists are convinced that there must be lighter elements in the Earth's core, such as carbon, which lower the core's density.

According to the researchers, this is not the first time scientists have tried to measure the carbon content of the Earth's outer core, but it is the first time that the composition of the Earth's outer core has been estimated by taking into account other "light elements" such as oxygen, sulfur, silicon, hydrogen and nitrogen to optimize carbon estimates.

It's not easy to study the 1,800-mile (2,890-kilometer) core beneath our feet through direct observation, so scientists have gone the other way, measuring longitudinal sound waves and building computer models to analyze the chemical composition of the outer core.

In the new study, scientists compared the speed of longitudinal sound waves on Earth with computer models that simulate different amounts of iron, carbon, and other "light elements" to find the best match.

"When the values of sound wave propagation velocity in the model are the same as the observed values of sound wave propagation velocity on Earth, we know that the chemical composition in the outer core is consistent with that in the model," Suraj Bajgain, the study's first author, said in a statement. Jain, also from the Department of Earth, Ocean and Atmospheric Sciences at Florida State University, is a postdoctoral fellow.

The new study narrows the range of carbon content on Earth from 990 parts per million to more than 6,400 parts per million. The researchers concluded that 93-95 percent of the carbon is in the Earth's core (either inner or outer). Thus, the Earth's core has become a well-deserved store of carbon.

The researchers also said that knowing how much of this element, on which humans depend, is in the Earth could help scientists better understand the composition of Bluestar and other Earth-like planets.

"It's natural to ask, where did all this carbon that makes up our bodies come from? How much carbon did the Earth contain at its birth?" Indy said. "How much carbon is left on the earth now? How has this carbon been preserved? In what form are they transformed between different carbon pools? The research we've done has helped us answer at least one of those questions - how much total carbon is stored on Earth now."

Now let's go back and analyze the Earth. Earth is the third closest planet to the sun and the only one known to have life on it. While many bodies in the solar system have large amounts of water, only Earth has liquid surface water. About 71% of the Earth's surface is covered by oceans, which dwarfs the polar ice, lakes, and rivers that are scattered throughout the planet. The remaining 29% of the Earth's surface is land consisting of continents and islands. Looking inside, the Earth's surface is made up of several slowly moving tectonic plates. The plates collide with each other, creating mountains, volcanoes, and earthquakes. Beneath the plates is the Earth's liquid outer core. This part produces the magnetic field that shapes the Earth's magnetosphere, which deflects the destructive solar wind.

The Earth's atmosphere is composed mainly of nitrogen and oxygen. Because of its location, solar energy is primarily concentrated at the equator rather than at the poles, but the effects of atmospheric and oceanic currents relatively mitigate this difference. Specifically, water vapor absorbs heat from the ground and carries it into the atmosphere, thus transferring heat from the equator to the poles and averaging global temperatures. The above is good, but greenhouse gases like atmospheric carbon dioxide trap solar energy at the Earth's surface. Also, the climate of a region is not only related to dimensions but is also influenced by altitude and oceans. Many places will experience severe weather such as tropical cyclones, thunderstorms, and heat waves, which will profoundly affect people's lives.