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Do models have global warming built in?

April 26, 2017built global warming models

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Do models have global warming built in?

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No. If left to run on their own, the models will oscillate around a long-term mean that is the same regardless of what the initial conditions were. Given different drivers, volcanoes or CO2 say, they will warm or cool as a function of the basic physics of aerosols or the greenhouse effect.