Trees greatly benefit the people living around them by having a positive impact on mental health and wellbeing, reducing stress and encouraging outdoor exercise. This is in addition to the benefits they will receive from an improved environmental quality and improved amenity which comes with planted areas.environmental quality and improved amenity which comes with planted areas. Reduce Energy Costs: Trees have been called the “low tech” solution to energy conservation. ... Clean the Air: Trees produce oxygen that we breathe. In addition, trees remove air pollution by lowering air temperature, by releasing water into the atmosphere, and by retaining particulates. by releasing water into the atmosphere, and by retaining particulates. Trees make the home for birds and other animals and insects, helping to keep up the ecosystem rolling. Trees make forests and that in turn help the earth in many ways like giving home to animals and bringing rains and prevents desertification.