Planting 10 more trees per block is like giving a $10,000 raise to households on the street.
Researchers present a compelling case for why urban neighborhoods filled with trees are better for your physical health. How much could a tree in the street or a nearby neighborhood park improve health? The research examined this question by studying the relationship between health and neighborhood greenspace as measured with comprehensive metrics of tree canopy on the street vs. tree canopy in parks and private residences.
The research looked at records from Toronto where 530,000 trees are categorized by species, location, and tree diameter. That was supplemented by satellite measurements of non-public green space. They correlated that with the health records for over 30,000 Toronto residents.
“According to our findings improving health perception and decreasing cardio-metabolic conditions by planting 10 more trees per city block is equivalent to increasing the income of every household in that city block by more than $10,000, which is more costly than planting the additional 10 trees.”
(July 2015) Washington Post and Scientific Reports, an online and open access primary research publication from the publishers of Nature, covering all areas of the natural and clinical sciences.