I'm curious what you think the primary energy source of the future will be. I'm going to list a few, I'm not going to give you an option of "all" or "both" or "a mix" because that's a cop out.... make a decision and support it.
50 years from today, what do you think will be the primary source of energy around the world? Will it be oil? Natural gas? Coal? A mix of fossil fuels? Biomass? Solar? Wind? Nuclear? Nuclear fusion? Some as-of-yet uninvented technology?
Let's hear your thoughts. There's no wrong answer unless you want to check back 50 years from now.