As the summer heats up and areas grow hotter, the TurfMutt Foundation – which has advocated for the care and use of yards, parks and other green spaces for 15 years – reminds homeowners of the importance of trees and other living plants for mitigating the heat island effect.
Trees, along with plants like grass, shrubs and bushes, help cool the environment through the processes of evapotranspiration.
“It seems like every year we hear of record-breaking temperatures, and these hot summer days are a good reminder about why we need more trees and other green space in our yards and neighborhoods,” said Kris Kiser, president and CEO of the TurfMutt Foundation. “It’s remarkable to think about all of the positive effects the green space in our own backyards and community parks can have on our everyday lives.”
Here are just five reasons why trees are tops at reducing heat (and more):
- Mother Nature’s Air Conditioner – By providing shade, trees lower surface and air temperatures. In fact, shaded surfaces could be 20º to 45º cooler than temperatures in unshaded areas, according to the EPA. Additionally, the EPA reports that the process of evapotranspiration can help reduce peak summer temperatures by 2º to 9º.
- Increased Tree Canopy = Decreased Heat-Related Illnesses – According to the U.S. Department of Health & Human Services (HSS), heat-related deaths have been increasing in the U.S. HSS statistics show 1,722 people died in 2022 from heat and in 2023 that number increased to 2,302. But more trees can help people stay safe during hot days.
- Better Mental Health – According to the Arbor Day Foundation’s Canopy Report, people who engage with trees and green spaces on a daily basis are happier and score higher in their mental and physical health than those spending time in nature less often. The report also indicates city dwellers with access to adequate green space experience 31% less psychological distress. Furthermore, children who live near more green space have a decreased risk of developing mental health disorders as they age.
- Good for the Environment – Trees are one of nature’s environmental superheroes. One tree produces nearly 260 pounds of oxygen each year. Two mature trees provide enough oxygen for one person to breathe over the course of a year.
- Energy Savings – Strategically placing trees around buildings and homes can save up to 30% on air conditioning costs and up to 50% for heating, according to the U.S. Forest Service. The U.S. Department of Energy devised computer models that predict the proper placement of only three trees can save an average household between $100 and $250 in energy costs annually.
To learn more, download the TurfMutt Foundation’s International Backyarding Fact Book here.
