Carbon capture and storage (CCS) is a new method that helps reduce carbon dioxide (CO₂), a gas that causes the Earth to get hotter. Power plants and factories use this system to take CO₂ from other gases and put it deep in the ground. Some places store it in rocks or underground water areas. In Texas, one company said it sends carbon almost two miles under the ground. In 2023, 45 carbon capture sites worked around the world. Together, they took away 50 million metric tons of CO₂. But this is very small compared to the 37.8 billion tons of CO₂ made by energy use, says the International Energy Agency.

Some people say this method can help clean industries like cement and steel. But others say it is very expensive and does not work well. One group said most sites only catch 60 percent of the CO₂. Also, 75 percent is used to help get more oil, not stored. A gas leak in Illinois near clean water made leaders stop carbon storage in that area. Some people support this idea if there is help with money. Others want more focus on clean energy.