The burning of this fossil material returns this carbon back into atmosphere as carbon dioxide, at a rate that is hundreds to thousands of times faster than it took to bury, and much faster than can be removed by the carbon cycle.
<h3>What is carbon cycle?</h3>
All life on Earth is chemically supported by carbon. There is exactly the same amount of carbon on Earth now as there has always been. Carbon creates essential compounds like DNA and protein during the formation of new life. Our atmosphere also contains it as carbon dioxide, or CO2. The carbon cycle is nature's method of recycling the carbon atoms that continually go from the atmosphere into Earth's living things and back again. While the ocean, the atmosphere, and living things also contain carbon, rocks and sediments hold the majority of it. These serve as the sinks or reservoirs through which carbon cycles. The ocean acts as a massive carbon sink that takes in carbon.
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