For years on end, through the process of photosynthesis, plants have been absorbing the suns energy and in turn pumping out oxygen to help us breathe. When the plants die, anaerobic bacteria, which is bacteria who stay out of contact with oxygen, eat the rotting matter, and as part of their metabolic process, combine one atom of carbon with four of hydrogen. The resultant is the molecule methane!
Methane can form mainly part of the natural gas that comes out of underground reservoirs, or bubbling out of marches in the form of swamp gas. These gasses can contain between 5 to 16% ethane and sometimes maybe even up to 8% hydrogen.

Natural gas holds a large amount of potential heat energy stored in the molecules of carbon and hydrogen. Methane can be used instead effectively for propane or natural gas by drilling the gas holes in the stove or any other lighting device eg: lantern, just a bit bigger as methane is unfortunately not as hot as the other gasses.
 
 

 

When mining, methane gas is released, for air is trapped in between the rocks and over the years, and changed form into methane gas. Then, when the rocks are split apart by miners, the gas is realeased.

 

Methane is often found under water, either in bubbles coming from the sea bed or crystalizing under rocks deep beneath the ocean's surfece. This is due to methane coming from the sea bed, which far under the sea bed, is the earth's core. The gas is released from there and finds it's way through the sea bed and rises to the surface, unless otherwise trapped by rocks or other objects.