CO2 is a vital part of the air we breathe. Every time we exhale, we release carbon dioxide from our lungs. This is then used by plants and other organisms for respiration. The cycle of carbon dioxide being released and absorbed is known as the carbon cycle.
The Carbon Cycle
When we breathe out CO2, it is absorbed by plants during photosynthesis, where it is used to create oxygen. The oxygen is then released back into the atmosphere, where it is taken in by animals and humans to be used in respiration. This cycle is essential for life on Earth, as it ensures that oxygen is available for us to breathe.
CO2 Storage
Most of the CO2 that is released into the atmosphere is not immediately absorbed by plants. Instead, it gets stored in the ocean and in the soil. This stored CO2 is known as “inactive” carbon, and it is slowly released back into the atmosphere over time. This process helps to keep the levels of CO2 in the atmosphere in balance.
Human Activity and CO2 Emissions
Humans are also responsible for releasing large amounts of CO2 into the atmosphere. This CO2 comes from burning fossil fuels such as coal and oil, which releases more CO2 into the atmosphere than can be absorbed by plants. This has caused the levels of CO2 in the atmosphere to increase, leading to global warming and climate change.
Conclusion
CO2 is essential for life on Earth, as it is used by plants and animals in respiration and photosynthesis. Most of the CO2 released into the atmosphere is absorbed by plants, but some is stored in the ocean and soil for long-term storage. However, human activity has caused the levels of CO2 in the atmosphere to increase, leading to global warming and climate change.
