From a historical perspective, oil as Fuel used to be cheaper than coal.
The old ways of heating your home still work quite well in fact.
The wood burning stove is taunted as making a come back as heating oil and natural gas prices reach new record levels.
At present, there a number of ways to use coal more cleanly. A process of turning it into natural gas as well as scrubbing the stack at the cogeneration plant spring to mind. If it's greenhouse gasses your concerned about; burning fuel at a central location is both more efficient and less costly to the consumer and the environment.
Trading energy futures with it's inherent parade of middlemen is not the most cost effective way to bring energy to market. This holds fuel off of the market until a favorable number for it's sale (pick a number) arrizes.
When the wages of working people no longer command such necessary resources, it's time to retool the means of conditioning the living space.
Geothermal is not only for places like Iceland. The Earth is like a solar energy battery as well as a heat generator. It simply depends where you look and how deep. Preheating or precooling conditioning mediums - according to seasonal imperatives saves on the cost of conditioning without these resources.
These kinds of savings rely on the proper building codes to implement them in energy conscious designs.
Like solar strategies for energy conservation, geothermal strategies produce no greenhouse gasses.
Complaining about failed wealth redistribution social programs won't build any such imperatives of energy conservation into current and future architecture.