Trees

High Speed Green (08-07-20)

Jiang, He, Chen, Larsen, and Wang evaluated how driving on a freeway through various sorts of urban environments influences driver experience.  They found via 90-minute simulations of environments through which study participants “drove” at the legal speed limit (70–120 km/hour) that: “The summarized mental status measure is the average value of the seven measures of negative mental status (boredom, anger, frustration, tension, anxiety, avoidance, mental fatigue). . . . the tree-regularcondition evoked significantly lower levels of negative mental status than all other conditions.

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. . .

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