⇔ Implementations of laws against deforestation and cutting a tree without the permission of proper authority should be considered as a crime and should give appropriate punishments to those who violate these laws.

⇔ Raise posters ,slogans and conduct Rallies on the importance of trees.

⇔ Conduct awareness classes for children and for adults on how a trees possessed an important role in molding the current Earth. 
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The first main thing is  not to cut trees .
this is the best way