Cityzenith, a Chicago-based digital twin platform, is partnering with the Los Angeles branch of the U.S. Department of Energy’s Better Buildings Challenge to help construct a digital twin, or virtual replica, of a section of the city to help make its buildings more sustainable and reduce carbon emissions. Digital twins allow potentially costly decarbonization efforts to be tested virtually before a data-driven decision is made in the real world. The endeavor will initially focus on Los Angeles’ downtown neighborhood, Bunker Hill. The partnership will also help Los Angeles work toward its Green New Deal goal to achieve zero net emissions by 2050 across its building sector, which accounts for 43% of the city’s emissions.