Captured CO₂ can only be stored in oil reservoirs used for energy production.

Injecting CO₂ into deep saline aquifers above 31.1 °C allows it to exist as a supercritical fluid that doesn’t mix with salty water, making long-term storage possible.

CO₂ must remain in its gaseous form to be effectively stored underground.

CCUS is a brand-new technology developed within the last decade.