hillsidedigger wrote:#1 - Consumption will be lower as people, corporations and government adjust their spending to involve less fuel consumption
Not to pick on you, hillsidedigger, because this is something I see a lot of people say, but there are real flaws to this argument.
Supply and Demand theory, as most people know it, means that as price goes up, consumption goes down. But this does not apply cleanly to every product or market. In the case of oil, we have about the most inelastic demand curve one could imagine. There is no easy substitute - who among us drives an EV or could go get one tomorrow? Now consider we're the TreeHuggers! No, the economy of today is based on oil and we can't easily or quickly escape that. As price goes up, consumption remains basically the same - because their is no alternative we can easily switch to (in Econ terms, a "substitute good"). Yes there are electric cars and natural-gas buses and hybrid delivery trucks coming into the market, but for the near future they will continue to represent a tiny minority of the total US fleet.
This is evidenced by the fact that this past year is the first time since the recession in the early 90s that there was any downward movement on consumption. Even so the movement was only 1.1%. I submit that since that time, gas has roughly tripled in price. Therefore we've had a 300% price increase and about a 1% decrease in consumption. As I said before, that's about as inelastic as demand ever gets.
Even if the trend continues, and we assume that it drops 2.5% by the time it hits $4/gallon, that means for every 1% decrease in consumption the price must go up by 60% before we get 1% reduction in consumption. Now I know that 1% of US consumption is a lot of gallons/barrels, but it's hardly going to mean we've arrived in the future and are all driving Priuses and EVs and taking mag-lev trains to work. It means you take vacations closer to your home, smartly plan out your Saturday shopping errands, and some more freight shifts to rails versus trucks (a trend that began awhile ago when gas got "expensive" around $2.25/gallon.)
There's a lot of good points in this thread, but I think we ought to be realistic here. Gas is about to quadruple this summer from where it was 10 years ago, and we've managed to reduce consumption (during an economic pull-back, mind you) only by 1.1% from the numbers I've read. That's hardly going to change the world as we know it.