What is the single most important function of trees?

The single most important function of trees is the removal of CO2 from the atmosphere during photosynthesis and the release of oxygen to the atmosphere as a byproduct. Trees also absorb pollutants and dangerous chemicals in the soil, muffle urban noise, act as windbreaks for homes and lower heating bills by 30%, increase humidity in dry climates via evaporation of moisture, and raise property values.
Updated on Wednesday, February 01 2012 at 08:39PM EST
Collections: photosynthesisatmospheretreesoxygencarbohydrate