Just a couple of days ago the press announced that feeding cows a spicy curry could reduce the amount of methane that they produce.  Cow flatulence is apparently a big cause of global warming.  But we’re not convinced giving them a vindaloo is going to make their gas problem any better!  Perhaps this inventor has a better solution.  He has devised a contraption that harvests the methane, converting it into a useable form of energy.  Imagine fields of rocket-propelled cows…  At least it won’t make the milk taste tikka!  US6982161 Process for the utilization of ruminant animal methane emissions (Herrema).