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How I Built This with Guy Raz
Literally unearthing a climate solution with Cody Finke of Brimstone
Nov 16, 2023
30:33
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Cody Finke, CEO and co-founder of Brimstone, discusses how his company is addressing the carbon emissions problem in cement production. They have discovered a rock that can replace limestone, reducing carbon emissions and making cement production carbon-negative. The challenges of implementing do-good technologies and the significant carbon emissions from cement production are also explored.
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Quick takeaways
- Brimstone has developed a new process for cement production using calcium silicate rocks instead of limestone, resulting in a carbon-negative product.
- By ensuring their cement is chemically and physically identical to traditional cement, Brimstone aims to overcome resistance from the construction industry and attract real estate developers interested in decarbonization.
Deep dives
The Environmental Impact of Cement Production
The production of cement emits a significant amount of carbon, almost as much as cars do. The majority of these emissions come from the limestone used as a key ingredient in cement. When limestone is heated to make cement, carbon is released into the atmosphere. However, Cody Finkie and his company, Brimstone, have developed a new process that eliminates carbon emissions. They use calcium silicate rocks instead of limestone to make cement, resulting in a product that does not emit carbon when heated. This process could have a massive impact on reducing carbon emissions in the construction industry, as cement production accounts for around 8% of global CO2 emissions.
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