Three types of mines to harvest energy from

Which mine is the most benevolent form of energy harvesting and which would improve the water quality of surrounding oceans, lakes and streams?

A. Oil field (Produces material for all petroleum based products)
B. Lithium mine (Produces material for both laptops and hybrid car batteries)
C. Hydrogen mine (20 times more explosive than gas, H2,once extracted from H2O is an under-utilized energy source due to the electricity demands needed to separate the hydrogen from the oxygen.)

If our cars used hydrogen or H2 instead of gasoline, the byproduct from our exhaust would be water vapor. Popular Mechanics magazine said that an 850-billion-dollar investment into our electrical grid via pebble reactors, (A nuclear reactor that isn't capable of melting down), could convert our oil based economy into a hydrogen economy thus eliminating geopolitical tensions over energy, less CO2 emission into the atmosphere and subsequently make our air safer to breathe and our beaches safer to swim in.

We have spent $520 billion in Iraq!