(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: It was way colder than normal today in Wagga Wagga, proof that there is no global warming.

Does this even deserve an answer? If we must …

Answer: The chaotic nature of weather means that no conclusion about climate can ever be drawn from a single data point, hot or cold. The temperature of one place at one time is just weather, and says nothing about climate, much less climate change, much less global climate change.

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