How can these gases be regulated? Will they impost a flatus tax system? http://www.nytimes.com/2009/04/18/science/earth/18endanger.html Flatus is composed mainly of CO2 and methane, which are now considered to endanger public health. Will one now be able to sue someone for letting loose in an elevator? I wonder if legislation concerning these emissions will pass? Maybe it will be done silently, and in secret.