trees and health app


find the hottest and dirtiest places in your city, and the neighborhoods where residents are most vulnerable


prioritize tree planting locations to maximize the positive public health impacts of new trees


set neighborhood-specific canopy goals, and estimate how many new trees are needed to reach them

Urban street trees slow traffic, provide sidewalk shade, improve air quality, and reduce the urban heat island effect - contributing to improved health outcomes for children, older adults, and those living in poverty. Air quality vulnerability varies between neighborhoods - and so does the presence of trees - but new trees are rarely planted with this in mind.

Select your city to see a neighborhood-by-neighborhood map of tree cover, urban heat island effect, and demographics to prioritize locations where new trees could contribute the most to public health outcomes.

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read the science behind urban canopy and our methodology