Carbon dioxide (CO2) is a Chemical compound comprised of Carbon and Oxygen. At temperatures higher than -78.8°C, Carbon Dioxide sublimes as it cannot exist as a liquid at standard atmospheric pressure. However, at temperatures below -78.8°C, Carbon Dioxide can exist as a solid, known as Dry Ice, at normal atmospheric pressure. Carbon Dioxide is a colorless, odorless, and non-flammable gas that is heavier than air and soluble in Water. Carbon dioxide is considered a greenhouse gas because it helps traps heat in the atmosphere. Without it, and other gases, the Earth would be frozen.
The burning of fossil fuels produces carbon Dioxide. Through the use of carbon capture technologies, the carbon dioxide is then separated from the other gases produced in the processes. After the Carbon Dioxide is captured and purified, it is then transported to suitable storage sites.