Carbon capture and storage (CCS) technologies aim to trap carbon dioxide emissions from big sources, such as power plants, and store them underground to prevent them from reaching the atmosphere. For this to become common, the cost of capturing CO2 needs to decrease, and better methods to watch over stored CO2 must be developed. The energy needed for CCS is more than for regular projects, so it'll only be used if companies or laws require cutting CO2. In the next 50 years, CO2 capture tech could get better with small improvements like new solvents and big advancements like ion transfer membranes for making oxygen in certain power plants.