What Effect Will the Iceland Volcano Have on Climate?

As the spectacular eruption of Eyjafjoell volcano in Iceland brings most transcontinental air travel between Europe and North America to a screeching halt, the question arises out here in the blogosphere: what effect will the eruption have on global climate? The short answer is none, or very little, or who knows? According to the U.S. Geological Survey, the worlds volcanoes…

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