Dihydrogen Monoxide is a highly dangerous chemical it...
Contributes to global warming and the "Greenhouse Effect", and is one of the so-called "greenhouse gasses."
DHMO is a causative agent in most instances of soil erosion -- sufficiently high levels of DHMO exacerbate the negative effects of soil erosion.
DHMO is present in high levels nearly every creek, stream, pond, river, lake and reservoir in the U.S. and around the world.
Measurable levels of DHMO have been verified in ice samples taken from both the Arctic and Antarctic ice caps.
Research has shown that significant levels of DHMO were found in the devastating Indian Ocean tsunami in 2004 which killed 230,000 in Indonesia, Thailand, Malaysia and elsewhere, making it the deadliest tsunami in recorded history.
After reading all this Mr Woody had us scared but the "Other Boy" soon worked out that is harmless, all it is, is water so we were mislead by our own teacher, he then told us not to believe every thing you find on the Internet and cross check it at least 3 times.
Extracted from http://www.dhmo.org/environment.html