Re: Actually, it's not that simple is it?
"but lighting your farts produces heat, which, well, heats up the environment..."
Exactly, saving you heating fuel in the winter! Well, for the people living in cold countries, at least -- they could buy fart credits from tundra people and the like (penguins!), I guess. A whole new market awaits thee. OK, you might need stronger air-conditioning in the summer, but I'm sure that if I massage the numbers enough I can show you that the winter savings and additional summer spendings cancel each other out.
Great article, by the way. :-)