CO2 storage, also known as carbon capture and storage (CCS), is a technology used to capture carbon dioxide emissions from industrial processes and store them underground in geological formations. This process helps reduce greenhouse gas emissions and mitigate climate change by preventing CO2 from entering the atmosphere. CO2 storage involves capturing CO2 from sources like power plants, factories, and natural gas processing facilities, compressing it, and injecting it deep underground into porous rock formations where it is stored permanently. Research in this area focuses on developing cost-effective and efficient methods for capturing and storing CO2, as well as evaluating the long-term safety and viability of CO2 storage sites.