natural combustible gas in the swamps!

There is little to see in the swamps, except frogs and new wood. But if you add some special fuel to this biome, for example natural gas. It will look like a cluster of blue lights in the air that hang over the water. if you collect it in a bottle and then put it in a furnace for melting or smoking, this gas in the bottle can become fuel. It should not be used in a regular oven because it gets too hot for that. The gas will make the kidneys work faster, or it will just be fuel that burns quickly, but also melts faster than usual. As for me, this idea sounds really interesting, it adds beauty and mystery to the night swamps and generally increases the functionality of this biome.