Elon Musk revealed new details on Thursday about The Boring Company's upcoming bricks. The tunnel-digging venture plans to use leftover dirt from its projects and package them into the product, cutting back on carbon emissions from concrete production. The company plans to start selling the bricks in two months time at a price of 10 cents per brick — giving them away for free when used for afforable housing projects.
The details are the latest in Musk's plan to revolutionize the tunnel-digging industry, after announcing the plans in May 2017 and providing more details the following March. The company claims that concrete production covers around 4.5 percent of greenhouse gas emissions, meaning bricks built from leftover tunnel dirt would help reduce some of this production.