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Do extreme cold waves constitute evidence against global warming?

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Although media outlets have cited both hot and cold spells as evidence for and against global warming, short-term extremes provide no evidence one way or another. This is especially relevant when it comes to conditions in the United States, because the continental U.S. contains only 1.6% of the world's surface area, and the entire U.S. (including Alaska and Hawaii) contains only 1.9% of the world's surface area.

DocumentationAnecdotes and Global WarmingWeather and Global Warming

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