Animation on why fracking makes peoples tap water flammable

http://youtu.be/mGXMONAoDvs

example of the problem in real life
https://www.youtube.com/watch?v=4LBjSXWQRV8
https://www.youtube.com/watch?v=4LBjSXWQRV8

https://www.youtube.com/watch?v=Yd8pr6uFA_Y
https://www.youtube.com/watch?v=Yd8pr6uFA_Y


Animation http://youtu.be/uokmsSi7LTY