Trees and Mortality (06-25-20)

Kondo and colleagues studied links between tree cover and human longevity.  They report that “greenspaces in urban environments have been associated with physical and mental health benefits for city dwellers. . . . We did a greenspace health impact assessment to estimate the annual premature mortality burden for adult residents associated with projected changes in tree canopy cover in Philadelphia between 2014 and 2025. . . .  We estimated that 403 (95% interval 298-618) premature deaths overall, including 244 (180-373) premature deaths in areas of lower socioeconomic status, could be prevented annually in Philadelphia if the city were able to meet its goal of increasing tree canopy cover to 30%.”

Michelle Kondo, Natalie Mueller, Dexter Locke, Lara Roman, David Rojas-Rueda, Leah Schinasi, Mireia Gascon, and Mark Nieuwenhuijisen. 2020.  “Health Impact Assessment of Philadelphia’s 2025 Tree Canopy Goals.”  Lancet Planet Health, vol. 4, no. 4, pp. e149-e157, DOI: 10.1016/S2542-5196(20)30058-9