YOU SAID:
is global warming true
INTO JAPANESE
地球温暖化は true。
BACK INTO ENGLISH
Global warming is true.
INTO JAPANESE
地球温暖化です。
BACK INTO ENGLISH
This is the global warming.
INTO JAPANESE
これは地球温暖化です。
BACK INTO ENGLISH
This is the global warming.
That didn't even make that much sense in English.