Release agents are living things or objects that release carbon into the air. Release agents are similar to carbon sources in the fact that they both store and release carbon. A few examples of release agents are volcanoes, forest fires, and humans. With all of these release agents and many more, some harm the environment.Humans greatly influence the carbon cycle through many activities. For example, when we extract fossil fuels and burn them for energy, this is called combustion. Another example would include deforestation. Deforestation occurs when we cut or burn down trees, which allows carbon dioxide to move throughout the air and settle in the atmosphere. Since carbon dioxide is a greenhouse gas, this would contribute to global warming, making these two carbon sources harmful.
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