Together, We Save Trees : Trees are essential to keeping our CO2 levels down as they absorb the gas from the atmosphere, which they then convert into proteins, fats and carbohydrates to help in their growth and overall health. With deforestation occurring at rapid rates and humans releasing CO2 into the atmosphere, we don't have enough trees to offset our CO2 release. Thankfully, the average solar system offsets an amount of CO2 that is equivalent to planting two acres of fully mature trees.