This is old news. There are some 30 towns that now have to truck their water in because the water table was drained by farmers

The same will inevitably happen here.

There is also concern that fracking might not provide enough energy over the medium term and that the US will have to be a net energy importer within a decade. So this 40 years of energy independence that Cameron expects might evaporate before 2020.

There may be many years of reserves but the environmental costs might mean that you will have to lock away 80% of those to avoid catastrophic climate change. Also there has been a dramatic fall in the out put of US shale output after a year or two. The only way to maintain the supply is to drill continuously and that has been only possible because of the ultra low interest rates. This entire industry might disappear as soon as interest rates rise, unless oil and gas prices rise faster.

The straight-out-of-the-ground price of natural gas is way down since the start of the boom in hydraulic fracturing. Back in 2008, users buying gas directly from drillers were paying an average of $7.97 per thousand cubic feet, according to the Energy Information Administration. By 2012, that cost—known as the “wellhead” price—had dropped to $2.66 in nominal dollars (not adjusted for inflation) resulting in a two-thirds discount in just five years.