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Energy Dept grants incentivize construction of buildings that pull CO2 from air

The 10 universities that received the grants are employing different approaches to drawing CO2 from the air: Texas A&M University and the University of Pennsylvania will use 3D printing to its advantage, creating net-carbon-negative building designs with hempcrete—a lightweight material mixed with the hemp plant’s core and lime—and carbon-absorbing funicular floor systems, respectively. Other universities — Clemson University and University of Wisconsin-Madison, among other organizations — are planning to create carbon-negative replacements for wood, cement, and insulation.