Carbon dioxide (CO2) plays a crucial role in Earth’s atmosphere, influencing climate, ecosystems, and even the way life on the planet functions. It is a natural component of the atmosphere, but its levels have become a focal point of discussion due to human activities and their impact on the environment. Understanding the importance of CO2 and the risks associated with its fluctuation—whether too high or too low—is key to addressing global challenges like climate change and preserving life as we know it.