Assistant Professor of Economics Damien Sheehan-Connor is the author of an oped in the Orlando Sentinel (available to subscribers) arguing that raising the gas tax would not only help the environment, but would save lives on the road. Sheehan-Connor considers the findings of a new study out by the National Safety Council, which suggested that automobile accidents are on the rise again after years of decline. While many factors could potentially contribute to this reversal, he writes that it's likely that two seemingly positive developments--lower gas prices and stricter fuel economy standards imposed by the government--have played an important role. How? Lower…