Picture credit: Submaris, GEOMAR
Scientists from nine European countries have developed an approach to selecting and monitoring geological sites suitable for carbon dioxide (CO₂) storage beneath the seabed.

The researchers have also recommended how best to assess the environmental risk of offshore storage. Their findings will help guide European regulations on Carbon Capture and Storage (CCS) and contribute to the safe operation of subsea CO₂ storage sites.

Researchers from within the SCCS partnership – at British Geological Survey, Heriot-Watt University and the University of Edinburgh – worked with fellow scientists from 27 partner institutions across nine European countries on a four-year project coordinated by GEOMAR Helmholtz Centre for Ocean Research Kiel. Funding of €10.5 million was provided by the EU’s 7th framework programme.

During expeditions to Norwegian CO₂ storage sites, Sleipner and Snøhvit, and natural CO₂ seepage sites, such as the Aeolian Sea and Barents Sea, the scientists identified possible pathways for leakages, monitored seep sites, traced the spread of CO₂ in bottom waters and studied the responses of benthic animals and plants to CO₂. Their results and conclusions are compiled in a guide for the selection and monitoring of storage sites, which has now been presented to the EU.

Read the full press release

Project website

Gas sampling as part of the ECO2 project. Picture credit: Submaris, GEOMAR

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