2.3.1. A simple greenhouse model
2.3.2. A leaky greenhouse
2.3.3. A more opaque greenhouse
We consider now the general problem of the radiative equilibrium temperature of the Earth. The Earth is bathed in solar radiation and absorbs much of that incident upon it. To maintain equilibrium it must warm up and radiate energy away at the same rate it is received, as depicted in Fig. 2.1. We will see that the emission temperature of the Earth is 255 K and that a body at this temperature radiates energy primarily in the
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