i-Tree Streets uses tree inventory data to quantify environmental and aesthetic benefits and their dollar value, including: energy conservation, air quality improvement, CO2 reduction, stormwater control, and property value increase. The study area can range from a single planting site to an entire city’s street tree population. Users may analyze data from an existing street tree inventory or conduct a new Streets-compatible inventory. i-Tree Streets is an adaptation of the Street Tree Resource Assessment Tool for Urban forest Managers (STRATUM). Users must register to download and install the free iTree software suite.