@Doer, is there a relationship between fracking and earthquakes? If so what and if not how does anybody know? Have they tested it for a hundred years in a lab before they started doing it? Also what happens when we have empty deposits inside of the earth in random places? Is it possible that fracking could change our heat, momentum, balance, and geographical makeup of the earth in a unpredictable and possibly harmful way?
Well remember what is happening in Florida, so I see what you are saying. Sink holes.
<pssst...nothing we do has been tested 100 years in labs, first)
It is a matter of scale. Water being pump from the water table 60 feet down is a lot different for effect.
And oil well might be 10-12K feet down and is sucking oil from a sand deposit in many cases. Sand stays, no holes 2 miles down.
OTH, the Destin Dome, currently untapped for strategic reasons is a vast salt dome with methane gas in it. I don't know if that is a void, maybe. But it is also very far down. Fracking you drill sideways, use water hammer explosive charges to transmit fracture forces, They don't want a few giant cracks they want millions of tiny cracks, so they blast accordingly.
The pressures drive sands of various grains into the fissures to hold them open. the drill mud is pumped out and the bore is filled with more sand. Now let the gas rise. Fuel our vehicles with low emissions. Ready to burn, no refining.
This better than gold mine, will keep us away from nuke power everywhere and the existing nuke plants can be phased out. Gas turbines for electricity...much better. Integrates with autos, kits available today.
Just look at all sides. Fear is good. Reason and proportion is a life long study, I think.