This post is partially a retraction and a correction. I have reported previously on how cow farts are filling up the atmosphere with greenhouse gas emissions in the form of methane. Apparently, its not the gas from the tail end of the cow that's the problem. Its the belching. My bad.
Either way, it sounds like a premise for a bad episode of Captain Planet and a chain of visual images that eventually ruins lunch.
This article appears in Jun 24-30, 2009.