+Carbon dioxide (CO₂) is a colorless, odorless gas vital for [Photosynthesis](/wiki/photosynthesis), where [Plants](/wiki/plants) convert it into energy. It is also a key [Greenhouse Gas](/wiki/greenhouse_gas) in Earth's atmosphere, trapping heat and regulating planetary temperature.
+## See also
+- [Atmosphere](/wiki/atmosphere)
+- [Climate Change](/wiki/climate_change)
+- [Carbon Cycle](/wiki/carbon_cycle)