What is the most viable energy source beyond oil. Most doomers on here would argue they are all doomed.. can never replace oil and were all going to either die off or revert back to riding horses and living preindustrial life styles. But if you had to make a bet on which one would replace oil as an energy source what would it be? I personally am leaning towards solar thermal myself.. given the vast amount of energy available from the sun that shines consistently in the arid regions of the globe. Plus the fact that base load power from the plants can be had by storing the heated liquids in tanks overnight. Other than that I would say wind next, given its already cheap but not too reliable.. then algae based biofuels long term look promising for a variety of reasons so let me see what you guys think.
If you want a picture of the future, imagine a boot stamping on a human face--for ever." -George Orwell, 1984 _____
twenty centuries of stony sleep were vexed to nightmare by a rocking cradle, and what rough beast, its hour come round at last, slouches towards Bethlehem to be born? -George Yeats
Many of those are viable energy sources. None of them is a direct replacement for oil. The solution is a mix of all of those along with a mega-dose of using less.
"We were standing on the edges
Of a thousand burning bridges
Sifting through the ashes every day
What we thought would never end
Now is nothing more than a memory
The way things were before
I lost my way" - OCMS
Fusion, they are clueless about a lot of problems regarding sustainability of continuous burning... so it's far far away from happening soon enough, but solar or I hope algae... that's pretty doable. Our industry will shrink no matter what alternatives we have.
I would have written everything Dezakin just wrote, had he not written it already.
With respect to coal, it's not a question of if, it's a question of "a lot more" or "a humungously large amount more"?
There is one more thing I'd like to add: I think "What is the most viable transportation energy source" is a more apposite/pertinent question for humanity right now. CTL following in crude's wake seems the only likely candidate, because biofuels of all types (even algae) seem insufficient and electrical or fuel cell just seem to be too slow to develop technologically. But I admit I don't know enough about this area to judge.
I think Smallpoxgirl and skyemoor are right, that a combination is what is needed. One source can't come close to doing it all. And without using a LOT less energy, we have had it.
I voted for coal/biomass, not because I want that, but because I think that is easiest and thus will be what happens, right after we have a major crisis and the populace squeals like a bunch of pigs for more cheap energy.