They provide privacy, emphasize views or screen out objectionable views. They reduce glare and reflection. They direct pedestrian traffic. They provide backgrounds, soften, complement or enhance architecture. Environmental Benefits Trees alter the environment in which we live by moderating climate, improving air quality, conserving water and harboring wildlife.
Climate control is obtained by moderating the effects of sun, wind, and rain.
Radiant energy from the sun is absorbed or deflected by leaves on deciduous trees in the summer and is filtered by their branches in winter. We are cooler when we stand in the shade of trees and are not exposed to direct sunlight. Wind speed and direction can be affected by trees. The more compact the foliage on the tree or group of trees, the greater the influence of the windbreak. The downward fall of rain, sleet and hail is initially absorbed or deflected by trees and this provides some protection for people, pets and buildings.