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One of my first experiences after moving to SF was riding a cable car. Riding along the hilly streets of SF and seeing the amazing sights was exhilarating. As I traveled around the city, I was so surprised and impressed at how many buses did not require fuel. I noticed a huge number of electric "stings" hanging above the city. These " stings" power most of the public transit. As one who cares about environment, I love being able to tour the city and not worry about pollution.