Just living, breathing and passing gas effects the planet also. Everything we do affects the planet, but there is always a lesser of two evils. I'm no scientist, but a stove that uses less fuel and burns cleaner seems hard to beat. The one thing that does confuse me is that fires are mother natures way of cleansing. Forest fires put out a whole lot off smoke and other stuff into the air. Can you imagine if all the fires that were started by lightning just burnt until they ran out of fuel? That is the natural path of things though. How can the explain the effects of this?