Rate the following argument fragment on its writing, argument, and language skills:
Evidence: president obamas ambitious goals to curb the united states greenhouse emmissions, unveiled last week ,will geta fortuitous assist from an incipent shift in american behavior: recent studies suggest that america is buying fewer cars, driving less and getting fewer liscenses as years go by. that has left researchers pondering a fundamental question:has america passed peak driving? the united states with its broad expanses and suburban ideals, had been one of the worlds prime car cultures. it is the birth place of the model T; the home of detroit; the place where Wilson Pickett immortalized "mustang sally" just kidding im not gonna copy all of that.

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