Air Pollution

There once was a planet named  PROPER NOUN, and it was heavily polluted with greenhouse  PLURAL NOUN. It was slowly creating  PLURAL NOUN in the ozone and  VERB ENDING IN ING the atmosphere. Luckily, humans passed the  ADJECTIVE Air Act and  PAST TENSE VERB Chlorofluorocarbons that were destroying the atmosphere. And yet,  NOUN pollution continues. You need to help save  PROPER NOUN USED EARLIER from  NOUN pollution!