Carbon Title estimates the CO2 emissions for each building based on a variety of high-quality data sources including some publicly available information. Because some data about specific buildings is only available to the building’s owner, we estimate both the worst-case (high-carbon materials and high energy use) and best-case (low-carbon materials, efficient energy use) scenarios, which leads to the range of carbon emissions.

As property owners add more specific data and claim a building, the accuracy of the carbon balance increases and the Explorer starts displaying a single carbon balance number versus an estimated range.