Gargantuan pile of manure has burned for three months

 Cnn 2005 Us 01 28 Cow.Fire.Ap Story.Cow.Fire.ApA 2,000 ton mound of cow manure in Nebraska has been burning continuously for three months, to the dismay of the Nebraska Department of Environmental Quality, which says the smoke is in violation of pollution laws.

Apparently, the decomposing manure generated so much heat that it spontaneously combusted. And no one knows how to extinguish the fire. They don't want to quench it with water because the manure will run off into nearby rivers.

Link (Thanks, Betsy!)