Was that the company that said they could make concrete that extracted carbon fr... | Hacker News

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MPSimmons on Sept 12, 2012 | parent | context | favorite | on: Ask PG: What Is The Most Frighteningly Ambitious I...

Was that the company that said they could make concrete that extracted carbon from air?

ig1 on Sept 13, 2012 [–]

Don't remember the details, Khosla was an investor though.

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