With real playbooks featured in Madden and constant input by John Madden himself, the 'x's and o's' of football are being taught to the next generation of gridiron greats.

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It would have been disappointing if school results had remained merely constant in the face of this input plethora.

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The central tendency of computer models using input that pretty much mimics the observed changes in carbon dioxide is to produce a constant (not an increasing) rate of warming.

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