I always thought it would be easier on our pockets if cars ran on some cheaper substance that everyone could afford, and have access to; Urine perhaps? We could stop at the red lights with our half empty tanks and homeless could become valued members of society; and we’d actually have a valid reason to look the other way.
Make it happen science, make it happen. Here is a video I found that tells you ways to save gas. Pretty interesting.
Quiz, In what year was gas 89 cents a gallon?