What if: gas rose to $6 a gallon?

Positives: We would be less reliant on fossil fuels and have less greenhouse gas emissions. More people would walk, ride bikes, car-pool or use public transportation.  There would be fewer cars on the road and fewer accidents which could lower insurance premiums.

Negatives: People would not be able to travel as much for work or pleasure.  The cost of living would rise beyond the threshold of minimum wage.