Along with you, I have witnessed the unfortunate rise in gasoline prices that has accompanied the summer driving season and the more recent spike in prices due to Hurricane Katrina.
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I think it's important that people think about what they are doing and that includes what they are eating. I am 61 now and attitudes towards drinking and driving have changed radically since I was a student. People change their notion of what is responsible. They will increasingly ask about the carbon content of their food.