The US uses approximately 70% of its oil, from whatever source to manufacture motor fuel (including aircraft and marine types).....30% go for all other consumables like plastics, building materials, etc.
We can shift the type of hydrocarbon fuel that we use for the various applications. For example, the US, and its territories have vast reserves of natural gas, which, if properly used could possibly replace 40% (optimistically) of our crude oil consumption. Taking our electric generating capabilities from 15% nuclear up to about 40 - 50% nuclear would reduce crude oil consumption by an additional 20%. These changes would place the US in the position of not having to purchase ANY crude oil from any sources other than our "friendly" neighbors Mexico and Canada (plus a little from the North Sea). That said, anyone that thinks that the US will move completely away from hydrocarbon fuels in the next century is completely deluded.........
One must also consider the fact that the US has sufficient reserves of coal to fuel our needs for the next thousand years.........coal is cheap.......what we need is the technology to convert it (economically) into usable application fuel in an environmentally friendly manner......and I think that this is already being done.......
What nobody is talking about.....and I don't understand why.......is that the planet's oceans contain (it has been estimated by reputable researchers) almost unlimited reserves of METHANE.....in solid form. These methane reserves exist in the depths below 400 fathoms in gigantic deposits similar to the polar ice caps, and are kept in solid form by a combination of temperature and pressure. All that is needed is an economical method of extracting the gas. Considering that deep-water drilling is now possible to depths of several thousand feet, I believe that it is only a matter of time until an inexpensive process is developed. Methane, by the way, is easily converted to hydrogen, which can be used as a vehicle fuel.
All of these considerations should be part of the debate, but I'm not hearing anyone speak definitively about ALL of the options that are out there........
I wonder why.....
doc