Phelim McAleer has an interesting post about the movie Gasland, in which residents of a US town are famously shown igniting their tap water. The insinuation is that this is something to do with fracking activitiy in the shales thousands of feet below the ground.
It turns out, however, that methane in tap water in the vicinity has been recorded for decades and what is more, Gasland director Josh Fox knew it - he just decided that it wasn't "relevant"!
The production company seems to have persuaded YouTube to pull McAleer's evidence, at least for the meantime. I don't suppose it will remain like that for long though.
Bishop Hill