Big oil is racing to scale up carbon capture to slash emissions but the challenges are immense

A paper mill in a small Mississippi town could help demonstrate whether capturing carbon dioxide emissions and storing it deep underground is a viable path to fight climate change.

The proposed project at International Paper's mill in Vicksburg was chosen by the Department of Energy in February to receive up to $88 million in taxpayer funding. If successful, the system would capture and permanently store 120,000 tons of carbon dioxide annually, the equivalent of 27,000 gas-powered cars, according to the companies behind the project.

Amazon, a partner in the project, sources containerboard from the mill for its boxes and packaging. SLB, the oilfield services giant formerly known as Schlumberger, is designing and engineering the carbon capture system in collaboration with RTI International, a nonprofit that developed the technology.

The Vicksburg paper mill project is just one example of how $12 billion in funding from the 2021 bipartisan infrastructure law is supporting the development of carbon capture technology across the United States, as part of the Biden administration's efforts to achieve net-zero emissions by 2050.

Carbon capture and storage technology today is expensive, logistically complex and faces controversy over its role in the energy transition and safety concerns in communities where pipeline infrastructure would be expanded.

The Paris-based International Energy Agency has described carbon capture and storage as "critical" to achieve global net-zero emissions, while also warning the oil and gas industry against using the technology as a way to maintain the status quo on fossil fuels. Some climate activists accuse the industry of simply investing in carbon capture as way to extend the use of oil and gas.

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