Norway Stores CO₂ Under Seabed in World-First Project

A wastewater treatment plant outside Oslo is now removing carbon from the atmosphere and locking it away 2,600 meters beneath the seabed, marking a world first for climate technology.

The Veas wastewater treatment plant serves over 800,000 residents in the Oslo region. When organic waste breaks down to create biogas, it naturally produces carbon dioxide.

Instead of releasing that CO₂ into the atmosphere, the plant now captures and liquefies it on site. Tankers then transport the liquid carbon to a terminal near Bergen, where it travels through a pipeline to permanent storage deep under the North Sea.

The project launched March 23, led by three companies: HoopCO2, Inherit Carbon Solutions, and Northern Lights JV. Northern Lights has been offering offshore carbon storage services since August 2025, but this marks the first time biogenic CO₂ from biogas has been permanently stored.

What makes this especially promising is the complete chain of custody. Inherit Carbon Solutions manages every step from capture to storage and issues certified carbon removal credits through the Puro.earth platform.

The Ripple Effect

This project joins a very small group of fully operational permanent carbon removal efforts worldwide. Most carbon capture projects exist only on paper or in pilot phases.

Chief executive Kaja Voss said the initiative proves the entire process can work effectively at scale. That matters because climate scientists agree we need both emissions reduction and active carbon removal to meet global climate goals.

Norway's existing offshore infrastructure from decades of oil and gas operations made this project possible. The same geological formations that once held fossil fuels now serve as permanent carbon storage sites.

The technology could be replicated at wastewater treatment plants worldwide, turning necessary infrastructure into climate solutions. Every city treats wastewater, and many already capture biogas for energy.

By demonstrating the full chain works, Norway has created a blueprint other nations can follow. The combination of proven technology, existing infrastructure, and verified carbon removal credits shows a path forward that's both practical and scalable.

This wastewater plant just became a small but powerful part of the climate solution.