Yep - like carbon dioxide, it's a very efficient absorber of infra-red radiation.
(
The Mock TurtIe ™ --- Thinks you are a cunt, on, Tue 26 Aug 2008, 18:55,
archived)
Nope. Common Myth Alert.
environment.newscientist.com/channel/earth/climate-change/dn11652
(
Dr. Shambolic je suis charlie, Tue 26 Aug 2008, 19:12,
archived)