We need to plant trees and nurture the ones already present because trees are an important source of controlling global warming.

Plants use carbon dioxide from the atmosphere for their own activity and give out oxygen in exchange. They reduce the excess amount of carbon dioxide by utilizing it, thus helping in prevention of global warming.

Plants further, hold up the soil together and prevent erosion.

Plants also help in maintain the groundwater level.

They further help in purifying the air and reducing air pollution.