YOU SAID:
People started global warming
INTO JAPANESE
人々 は、地球温暖化を開始
BACK INTO ENGLISH
People began warming
INTO JAPANESE
人々 は、地球温暖化を始めた
BACK INTO ENGLISH
People began the global warming
INTO JAPANESE
人々 は、地球温暖化を始めた
BACK INTO ENGLISH
People began the global warming
That didn't even make that much sense in English.