By Jane Raffaldi, New York Department of Environmental Conservation
As leaves change this time of year, it’s obvious that urban trees make our communities more beautiful, but did you know they also make our neighborhood streets safer? Streets lined with trees tend to encourage slower driving and statistically have less accidents than those without. And it’s not just speeds that are lowered by their presence – they also contribute to lower stress levels in drivers, leading to less road rage.
How does a simple stretch of trees have such a magical impact? According to the Federal Highway Administration, the presence of tree canopy along a street provides a narrowing speed control measure by creating a “psycho-perceptive sense of enclosure” that discourages speeding.
When drivers feel like they’re in a smaller, closed space – like a tunnel or a canopied street – they drive slower than when driving through open areas. Additionally, the presence of greenery naturally calms us whether we are consciously looking at it or not.
The newly launched Healthy Trees, Healthy Lives website (
As the hilarious, award-winning 
This year, as families all over the country spend more time at home, we have been given the opportunity to appreciate the fresh air that we can enjoy on our own back porches and front stoops more than ever. Trees are a significant factor contributing to the quality of the air we breathe. 
Thanks to the efforts of researchers over the past few decades, we have a solid understanding of the ecological benefits of urban forests, such as reduced greenhouse gases, decreased stormwater runoff, and lessening of the urban heat island effect. In contrast, knowledge of the human health benefits of urban forests is still developing. Existing reviews of health benefits have focused more broadly on nature, green space, and greenness rather than concentrating specifically on urban trees.
“What is it about this place?” I wondered. “Why does this city feel so harsh, so disheartening?”
Are you going stir-crazy stuck inside your house or apartment? Take a visit to the forest outside your door! Step outside to enjoy the sights, sounds and smells of the trees and nature around you. It’s good for your mind, body and soul. Research shows exposure to nature reduces depression, anxiety and stress! Plus, we all know physical activity keeps your body healthy and boosts your mood. 
Looking for some hard numbers on how urban trees affect health conditions such as asthma, cardiovascular disease, obesity, and ADHD? 
Now more than ever, trees and forests are a vital component of healthy, livable, and sustainable communities, in the U.S. and around the globe. Along with its partners such as the Wisconsin DNR, the Arbor Day Foundation is seeking ways to link together those that plant and tend urban trees and forests for the benefit of humankind.