Toprotecttheearth,wecandomanythings.Wemustnotpollutethewaterandtheairweareconsuming.Wemustnotanyhowchoptreesformakingfurniture.Whencommunicatingwithfriendsfaraway,trytousepaperlessmethod.likee-mail.Intheworkingofficewemustuselesspaperforprinting.Whenbuyingtakeawaymeal,wemusttrytobringourownutensilandnottorelyonone-timechopsticksorstyrofoampackage.