Answer:
Healthy trees mean healthy people. Trees remove many pollutants from the atmosphere, including nitrogen dioxide, sulfur dioxide, ozone, carbon monoxide, and particulate matter. Each year, 100 large, mature trees have the potential to remove 7 tons of carbon dioxide, remove 328 pounds of other air pollutants, and catch approximately 215,000 gallons of rainwater.
Healthy trees mean homeowner savings. One well-placed large shade tree can provide an average savings of $9 on home air conditioning costs each year. Trees provide enormous cooling benefits.