Carbon Capture, Utilization and Storage, or CCUS, is an important emissions reduction technology that can be applied across the energy system. This involves the capture of carbon dioxide or CO2 from air or from industrial processes, the transport of this CO2 via ship or pipeline, and either its use as a resource or its permanent storage deep underground in geological formations. CCUS technologies provide the foundation for carbon removal or "negative emissions" when the CO2 comes directly from the atmosphere.