Sounds like fracking is causing this. 
Hell, according to evirowackos, fracking is causing everything else, from Barry's big ears to glowbull warming.
I'm old enough to remember the '70s, when Mother Gaia was irretrievably doomed by acid rain, PCBs, and Alar.
The only microscopic hope was that the whole thing would be halted by worldwide glaciers caused by global cooling.
But today's wackos are so much smarter than those '70s wackos.