Nobody likes the gas price trends, but heres a paper that points out a possible good side. It links low gas prices and obesity. The idea is that higher prices make people drive less, walk more, and eat less unhealthy restaurant food. This assumes that people cook more healthy meals than restaurants, I guess. I know, "correlation is not causation", but it's interesting anyway. In that spirit, (and in celebration of International Talk like a Pirate Day) here's another one showing a relationship between lack of pirates and global warming.