__ Lo w - carbon _ life _ is _ good _ for _ e v eryone . _ To _ help _ w ith _ the _ en v ironment _ I _ al w ays _ w alk _ or _ ride _ a _ bike _ to _ school _ instead _ of _ taking _ a _ car . _ Besides _ I _ use _ both _ sides _ of _ e v ery _ piece _ of _ paper _ and _ I _ ne v er _ forget _ to _ turn _ off _ the _ lights _ w hen _ I _ lea v e _ the _ classroom . I _ think _ it ' s _ my _ duty _ to _ li v e _ a _ lo w carbon _ life . _ And _ e v en _ the _ simplest _ acti v ities _ can _ make _ a _ real _ difference _ to _ the _ en v ironment . _ So _ I _ suggest _ w e _ should _ reuse _ books _ as _ long _ as _ possible . _ And _ w e ' d _ better _ not _ spend _ much _ money _ on _ expensi v e _ clothes . _ I _ belie v e _ w e _ can _ make _ our _ w orld _ more _ and _ more _ beautiful . __