Petrol prices in Australia are around AU$ 1.35, per litre, as there are 3.78 litres in a gallon, we are already paying AU$ 5.10, per gallon. Possibly even more than that in US$, as our dollar is valued higher than the US$ at the moment.
There are solutions, that will help in the short term and in the long term, for people and the planet.
Simply using your car less, will save you a lot of money, and the world, more pollution. Use your imagination, find cleaner and cheaper forms of transport, its really not that hard.
Change the way you live, better for your health, and better for the health of the planet. Its always better to be the change, then have the change forced on you.