Zach is correct, there was actually a New York Times article a few days ago that explained the science behind the fact that some climate zones will become more wet because of global warming. And wet combined with thirty degree weather means snow!
Mod-80 and Dave,
There is NO question that the earth has warmed over the past 130 years. That is the period over which we have decent temperature series worldwide. Being a sceptic about that is like being a sceptic about whether a pig is kosher — the data are that clear.
While the increase does correlated with increased fossil fuel consumption and increased intensive agriculture, that is not an absolute proof as correlation does not automatically prove causality. Furthermore, the association between other potential factors are not strong enough to explain the associations between the human activity and the warming. Therefore most scientists agree that human activity probably is responsible for at least some of the warming. However, it is possible that some other factor may eventually be discovered.
Also not completely well understood is why the greatest temperature increases have been in the Arctic. Increases in temperate zones have been relatively small by comparison. Fortunately the melting ice in the Arctic is sea ice, which does not increase the sea level.
One of my former professors, Dr. Richard Lindzen, is well known as one of the “sceptics” but he is simply unconvinced about the causes of the warming, not that the warming exists. Another one of the sceptics, Prof. Bjorn Lomborg, still thinks it is a serious enough problem that we need to take action. In short, the question is NOT whether global warming has happened: There is NO doubt about that. The question is what to do about it.