Kooldioxide, often referred to as carbon dioxide (CO2), is a colorless gas that is naturally present in Earth's atmosphere. It is produced by the respiration of animals and plants, as well as through the combustion of fossil fuels. Kooldioxide plays a crucial role in the carbon cycle, where it is absorbed by plants during photosynthesis, helping them produce oxygen. In addition to its natural occurrence, kooldioxide is also a significant greenhouse gas. It traps heat in the atmosphere, contributing to climate change. Human activities, such as industrial processes and deforestation, have increased its concentration, raising concerns about its impact on global temperatures and weather patterns.