Louisville study seeks to understand trees' impact on health
Clip: 12/12/2019 | 6m 37s Video has closed captioning.
Trees can add beauty and serenity to a neighborhood -- but can they also improve the health of its residents? In Kentucky, the University of Louisville — with help from the National Institutes of Health and The Nature Conservancy — aims to find out. Called Green Heart Louisville, the initiative involves a large-scale scientific study of how greenspaces affect public health. John Yang reports.
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