Geological storage of carbon dioxide has been done at an industrial scale on land and offshore for several decades around the world.
Storage sites are selected through extensive geological assessment and operate under strict monitoring and regulatory requirements, designed to ensure long-term safety and permanent storage. The likelihood of significant leakage or re-emission to the atmosphere is considered very low.
When properly designed and regulated, geological storage is considered to pose low risks to the environment and human health. In Europe, a robust legal framework sets clear requirements for environmental protection, monitoring, and long-term liability