A new study has shed light on how the Earth cycles its fossil carbon. The study, published in the journal Nature, found that the Earth's surface releases more fossil carbon than it absorbs, and that this imbalance is helping to drive climate change.

The study's authors used a combination of satellite data and computer modeling to track the movement of fossil carbon between the Earth's surface and the atmosphere. They found that the Earth's surface releases about 10 billion tons of fossil carbon into the atmosphere each year, while it absorbs only about 2 billion tons.

This imbalance is due to a number of factors, including the burning of fossil fuels, the decomposition of organic matter, and the release of carbon dioxide from the ocean. The burning of fossil fuels is the largest source of fossil carbon emissions, accounting for about 6 billion tons of carbon per year.

The study's authors say that their findings have important implications for understanding climate change. They say that the Earth's surface is acting as a source of fossil carbon, rather than a sink, and that this is helping to drive climate change.

"Our study shows that the Earth's surface is not playing the role that we thought it was in the carbon cycle," said lead author Dr. Riley Duren. "It's actually releasing more fossil carbon than it's absorbing, and that's a big problem."

The study's authors say that their findings highlight the need to reduce fossil fuel emissions and to find ways to remove carbon dioxide from the atmosphere.

"We need to take action to reduce our reliance on fossil fuels and to find ways to remove carbon dioxide from the atmosphere," said Dr. Duren. "If we don't, climate change will continue to get worse."