Carbon Cycle

By Vanessa Franco

The importance of Carbon Cycle

Carbon cycle is really important to the environment because,

all living things are made of carbon in one way or another. The carbon cycle is how carbon is exchanged throughout the earth: between the atmosphere, oceans, ecosystem and geosphere. If the carbon cycle fails, then life begins to break down, causing life to end.

Some pictures with details.

The steps in Carbon Cycle

Step 1: Carbon enters the atmosphere as carbon dioxide from respiration (breathing) and combustion (burning fossil fuels).


Step 2: Carbon dioxide is absorbed by producers (the organisms that make their own food, example:plants) to make carbohydrates in photosynthesis . These producers then put off oxygen as a waste.


Step 3: Consumers feed on the plants. Then the carbon compounds are passed along the food chain. Most of the carbon these animals consume however is exhaled as carbon dioxide. This is through the process of respiration. The animals and plants then eventually die.


Step 4: The dead organisms are eaten by decomposers in the ground. The carbon that was in their bodies is then returned to the atmosphere as carbon dioxide. In some circumstances the process of decomposition is prevented. The decomposed plants and animals may then be available as fossil fuel in the future for combustion.

Human effects

Humans affect the carbon cycle through the exhalation of carbon dioxide, by respiration, the burning of fossil fuels, and deforestation. Burning fossil fuels and deforestation leads to a disruption in the balance of the carbon cycle, since deforestation cuts down all the producers, the producers are not able to take in the carbon dioxide. That leads to global warming.