Mike Lane wrote:
I don't think there is any doubt that the arctic sea ice has reduced over the
last decade. The fact that the north west passage is now routinely navigable
during summer months is surely sufficient evidence of this?

Even more interesting, the north-*east* passage is opening up to
navigation.
http://www.wunderground.com/climate/...rnPassages.asp

(Tho', every Google search for "northeast passage" says: "I think you
mean northwest passage")

JGH