I for one actually support a tax increase on gas. I would like to see it go up by at least $1.00 per gallon. Simply so that people will start using otehr means of transportation. Not to mention for research that could be used to end our dependence on oil.
A tax increase in metro areas? Or nation-wide? Gas has been over $3 per gallon for quite some time now here in Northern Maine. Putting gas over $4 per gallon in such a rural area would be very hard on families.
What alternative methods of transportation do we have here in Northern Maine between October and May? No one is going to walk across town, let alone commute from outside of town during those months, when temperatures can fall below freezing (likely only at night from late April-May, but people work at night too). Not to mention we get 10-11' of snow on average here every season.
Walking? Not going to work unless it's summer. Even then, it's limited to people who live within walking distance of their careers, which I'm going to bet isn't a whole lot.
Car-pooling? You're going to run into trouble when people are commuting to work 10-20 minutes (or more) from outside of town in opposite directions. Feasible option for some folks, though.
Alternative fuels? Not available around here (or even three hours in any direction as far as I know).
What else is there if gas hits us at over $4 per gallon?