Here is the reason why so many question the "so called scientists," including those who claim global warming.

If fracking causes earthquakes, wouldn't we be seeing a strong correlation of earthquakes springing up all over the US where fracking takes place?  Fracking is happening all over, from the NE to the west coast.  If this were true I would expect quakes to occur around the well sites at an alarming rate, similar to quakes around a volcano. before an eruption.  Proper reporting would be to investigate where all the fracking is occurring and them place epicenter marks on that map.   It should be very clear. i.e. like crime stats in Mt. View.  

You can't cherry pick Oklahoma which has a fault lines running right through it.   Why are there not a bunch of quakes in North Dakota?  The simple fact is, that there is no proof that fracking causes quakes.