How can deforestation contribute to global warming?

Deforestation is the removal of trees from the environment; therefore, since carbon dioxide is not being eliminated, more of it accumulates in the atmosphere.

Carbon will be fixed by these plants (trees) in order to do what? You know it—a process that uses carbon during carbon fixation, therefore reducing carbon dioxide. This process also happens to increase the oxygen concentration in that same atmosphere.

Sugars are essentially'stored' chemical energy, or an alternative energy source to sunlight, which is ultimately used to make food.

Deforestation increases atmospheric CO2 levels and contributes to the greenhouse effect, which traps heat in the Earth's atmosphere and causes global warming. Deforestation also reduces the number of trees available to absorb carbon dioxide (CO2), which increases atmospheric CO2 levels. Deforestation releases carbon dioxide (CO2) into the atmosphere primarily because trees act as carbon sinks, absorbing CO2 during photosynthesis.