Concrete and steel create a lot of buildings–a lot of CO2, too. Now, new EU regulations require builders and developers to disclose just how dirty their building materials are. Many contractors don’t have a clue. Enter Lisa Oberaigner. She’s the cofounder of Emidat–a software start-up that helps manufacturers measure–and reduce–the environmental harm of building materials. To do so, Oberaigner measures the carbon emitted from creating the building materials, and next identifies how and where in the supply chain a manufacturer can reduce it. Her software uses AI to quickly and accurately create these reports. “What we offer today is a platform where the manufacturer can automatically feed in this data from their systems, then the declarations are autogenerated,” she said. “It shortens the time from roughly a year to a week.”

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