The Greenhouse Effect

Blackbodies emit a broad spectrum centered around lmax = 2897/T

lmax(sun) = lmax(5800K) = 0.50 mm lmax(earth) = lmax(300K) = 10 mm

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Fig.03.02

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Ok, so that’s the Greenhouse Effect.

What’s global warming? 3

This is global warming 4

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Greenhouse Gases: CO2

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CO2 emissions from fossil fuel combustion 9

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Greenhouse Gases: Methane

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Greenhouse Gases: Water Vapor

Positive feedback

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