While geothermal plants are already classified as renewable energy, they do produce a small fraction of the CO₂ that would be generated by a natural gas facility. It’s scaling up its project at the Hellisheidi geothermal power plant to capture carbon emissions as they are released, and it’s partnering with Swiss startup Climeworks AG that builds machines to capture CO₂ directly from the air. Carbon capture can cut a company or government’s emissions to zero, while carbon removal can help offset its emissions, or even make its impact negative, by taking more CO₂ out of the air than it produces.Ĭarbfix is doing both. A second, more challenging process, is “carbon removal” - withdrawing CO₂ from the air around us. The first is called “carbon capture,” where the gas is trapped from the smokestacks of factories and power plants before it escapes into the atmosphere. founder Bill Gates and Tesla Inc.’s Elon Musk, who are searching for solutions to avoid the worst effects of global warming. Once considered a pipe dream, capturing and storing CO₂ has in the last few years become an area of immense interest for high-profile investors, such as Microsoft Corp. “Basically we are just doing what nature has been doing for millions of years, so we are helping nature help itself.” Reykjavik-based Carbfix captures and dissolves CO₂ in water, then injects it into the ground where it turns into stone in less than two years. “This is a technology that can be scaled-it’s cheap and economic and environmentally friendly,” Carbfix Chief Executive Officer Edda Sif Pind Aradottir said in an interview.
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