Methane emissions from coal contribute towards increasing greenhouse gas concentrations. However, methane is a source of energy which is cheap, geologically accessible and relatively simple to use. Methane can be used to replace natural gas or as a primary or secondary fuel in both large and small scale combustion systems. And because methane has a higher global warming potential than CO2, the simple destruction of methane by oxidation or even flaring, reduces its contribution to the greenhouse effect significantly. Although there are plentiful resources of coalbed methane in countries such as the USA, China, Russia, India, Africa and even throughout . . .