Warming or Cooling? Heads or Tails?

At left, Two Headed Quarter from Doublesidedcoins.com This article, originally published in the Wall Street Journal, is now republished here, with the author’s permission, using his website post. Mathematician Doug Keenan (in so many words) rhetorically asks the question: “Are we flipping a two headed coin to determine if it is warming?” How Scientific is…

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