[Post reconstructed after 25.10.07 hack]:
My Correlations colleague Michael Tobis has a nice, simple post about the difference between weather and climate that’s worth a look. He starts out:
We climate scientists often hear the case made “If you can’t predict the weather next week, how could you predict the climate in a hundred years?” The answer to the question is hidden in the question. The weather and the climate are not exactly the same thing, and so what you can say about the one and what you can say about the other are also different.