Trees contribute significantly to the environment by combating climate change. They absorb carbon dioxide, release oxygen, and reduce greenhouse gases in the atmosphere.
Additionally, trees help muffle sound pollution and improve air quality. During rainfall, trees minimize stormwater runoff, thereby preventing flooding and soil erosion.
They also serve as valuable habitats, supporting biodiversity in insects, birds, animals, and microorganisms.
Keeping it Cool: Trees Help Prevent Heat-Related Illness
Dear Lykkers! Rising temperatures and heatwaves caused by climate change are becoming increasingly common, especially in urban heat islands where asphalt and concrete intensify heat. In such areas, temperatures can soar up to 7°F higher than in suburban or rural neighborhoods. Trees provide shade that cools these urban spaces, reducing heat-related health issues, particularly for outdoor workers, children, elderly individuals, and those with medical conditions. A study published in The Lancet revealed that increasing tree canopy to 30% in 93 European cities could prevent nearly 40% of premature heat-related deaths in adults.
Better Mood, Behavior, and Attention in Children
Nature exposure has been linked to numerous health benefits, such as lower blood pressure, better sleep, and improvements in chronic conditions. These benefits extend to children, enhancing their mental health and cognitive abilities. A study of children aged 4 to 6 found that those living near green spaces exhibited less hyperactivity and scored higher in attention and visual memory tests compared to others.
Even the mere sight of trees positively impacts mental health. For example, children in Michigan who could view trees from their school windows exhibited fewer behavioral problems than those without such views. Similarly, a study in Finland modified daycare environments to resemble forest undergrowth. Within 28 days, children in these modified spaces demonstrated a healthier microbiome and improved immune system markers compared to children in standard daycare settings.
Reducing Crime and Fostering Community Well-Being
Green spaces have been shown to improve the quality of life within communities. A randomized trial in a US city transformed vacant lots by planting and maintaining grass and trees. The results revealed a reduction in crime in neighborhoods below the poverty line, where greened lots replaced untouched ones. Additionally, residents near these green spaces reported feeling safer and engaged more in outdoor activities like relaxing and socializing.
Reversing Urban Tree Canopy Decline
Urban tree canopy cover has been declining over the years, but programs across towns and nonprofit organizations aim to counter this trend. Initiatives like Canopy Crew in Cambridge and Speak for the Trees in Boston provide resources and information on tree planting and care. Programs like Neighborhood Forest distribute trees to schools and youth organizations across the US.
Choosing Native Trees for Sustainability
Planting trees native to your region ensures they thrive in local conditions and support the local ecosystem. Regional Native Plant Societies can guide tree selection and planting. For those concerned about seasonal allergies, certified arborists or tree organizations can recommend suitable native tree options.