There are 10 common ways:
1, Keep tree
2, Using naturlal materials
3, Unplug the plugs fom the socket
4, Use dean energy
5, 3R principle: Reduce, Reuse, Reycle
6, "I" take a bath "I"
7, Reduce the use of plastic bays
8, Take advances of science
9, Use the advances of science
10, Raise awareness of life