Why Trees?

Trees have a powerful impact on air quality, climate change, energy conservation, water quality, economy, comfort, habitat, and public health.

Social, Psychological, and Community Benefits


Trees Root the Communities

Trees have been shown to have noticeable and lasting effects on the sense of community in neighborhoods. They play a key role in making meeting places attractive, engaging, and comfortable, which increases use. Resident participation in tree planting projects promotes a sense of ownership, stewardship, and a reason to meet neighbors. Trees make neighborhoods more walkable by shading hot sidewalks, providing scenery, and buffering pedestrians from traffic, noise, and pollution. Tree lined streets also reduce traffic speeds.

Trees Reduce Violence and Stress

Multiple studies suggest that tree-filled areas have relatively low rates of crime and domestic violence because trees relieve stress, and promote a sense of safety and interaction among residents. Communities that have a high level of resident interaction are shown to have higher levels of safety, regardless of economic conditions, because residents are willing to look out for one another. The ability of urban trees to relieve extreme heat and reduce noise pollution has also been linked to decreases in violent behavior. Trees have also been linked to faster recovery from illness. Studies have found that patients with views of trees from their hospital window have faster recovery times than those without.

Trees Increase Business and Property Values

Trees have also been linked to improved local area business and increases in property value. Shoppers are willing to make more frequent and longer shopping trips to tree-lined commercial districts. They have also been shown to spend up to 12% when shopping in these districts. The sales price of residential property has been shown to increase 1% for each large front yard tree and up to 10% for large specimen trees.

Studies Connecting Trees to Human Behavior

Resources