alredoo yeah... all poo can be used to produce biogas... that can be used instead of LPG, CNG, Petrol, Diesel...etc

Anything that decomposes can be used to produce biogas... under controled environment... the gas rises and can be colleced in a large Balloon and can be used to run generator, vehicles and even cook.

eg:

http://money.cnn.com/2008/02/26/news/international/kahn_biogas.fortune/i...