earth day today anyone did anything to save the earth?

Well I did, I think, by turning off the light when not in use, ensure the house use less power and efficient such as sealed any crack doors and windows to keep clean and cool air inside the house, in winter keep warm air tight inside. Many things you can do to save the earth, we only have one earth and we haven’t master the art of space exploration yet, so if we destroyed earth we will not have anywhere else to go but to died with it.