Trees have provided humanity with important necessities such as food, oxygen, water, shelter, etc., since the dawn of time. They are the species responsible for cleaning the air we breathe. They absorb harmful pollutants and provide clean oxygen.

In metropolitan areas, trees absorb harmful gasses such as nitrogen oxides, ozone, and carbon monoxide, along with particles such as dust and smoke. They are also important in absorbing rainfall and minimizing the threat of floods and landslides.

Their extensive root systems work as filters, absorbing contaminants and limiting the amount of water absorbed by the soil. This method decreases the risk of oversaturation, floods, and waterslide erosion.

Furthermore, a single tree may house a number of species like moss, birds, and other plants.