There is an awful lot of shale oil fracking going on, injecting trillions of gallons of god knows what chemicals deep into the water aquifers the earth. In Wyoming peoples tap water can be lit on fire at their sink faucet. I believe that the US shale oil boon will run out of supplies very soon, leaving entire areas cancer clusters, because of drinking water pollution of underground aquifers, from shale oil fracking. Earthquakes and sinkholes are common in these shale oil fracking areas.
