CO2 is the most prevalent greenhouse gas in the atmosphere. Because of that, it is important to understand carbon: what it is used for, where it comes from, where it goes, and how it interacts with other elements. As it relates to global warming, the concept of carbon sequestration—or carbon storage—is especially important. If carbon can be stored, it is removed from the environment, and, therefore, removed from being a potential source of greenhouse gas. This chapter looks at the role of carbon and the cycle it goes through—where it comes from and where it goes. It looks at which areas on Earth are sources of carbon and which are carbon sinks (reservoirs), able to store excess carbon from the Earth's atmosphere. Carbon sinks play a direct role in global warming—the more that can be sequestered, the less available to contribute to global warming.
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Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.