The US coal resources have more megawattage of power than the oil in the entire Persian Gulf.
[quote]The Earth’s stores of coal, oil and natural gas will not last forever. The experts agree on this. They estimate that there is enough;
natural gas to last for 70 years
oil to last for 30-50 years
coal to last for 200-300 years [/quote]
If that coal can be used without the current environmental impact and risk, that should be sufficient time for us to have thorium salt reactors and/or fusion capability.