Climate-friendly cement? California takes on a high-carbon industry

because of improved energy efficiency and increased use of lower-carbon fuels.

The cement industry needs a variety of technologies to cut carbon, he said, some so costly that the industry is seeking state funding and incentives. “Decarbonization is hard and it’s also really expensive,” he said. “In short, you’re talking about a significant shift in how we approach these sectors and how these sectors operate. Fundamentally we need to think about technological innovations.”

Keith Krugh holds a piece of petroleum coke, a fossil fuel that is used to super-heat the kiln at the Redding cement plant. Photo by Martin do Nascimento, CalMattersUsing tires for fuel eliminates only about 5% of the kiln’s emissions. Krugh said the factory, whicheffective July 1, is working to replace at least half its fossil fuels with climate-friendly alternatives within the next 10 years.

Some of these technologies aim to use carbon dioxide for cement production, while others involve capture and storage, where the carbon is injected deep underground into rock formations.By clicking subscribe, you agree to share your email address with CalMatters to receive marketing, updates, and other emails.

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