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10.global.warming - Special Topic Global Warming and the...

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Special Topic: Global Warming and the Carbon Cycle Introduction: earth’s atmosphere Global Warming – the “Greenhouse Effect” the Carbon Cycle and Atmospheric CO 2 Aerosol’s Effects on Global Warming How to Reduce Global Warming?
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NASA, the blue marble ttp://visibleearth.nasa.gov/view_rec.php?id=2429 Atmosphere: extends upwards ~ 100 km, but ~75% of the mass within 11 km. Functions: Acts as a freshwater distillery. Absorbs cosmic rays and UV radiation. Insulates the earth – the “Greenhouse Effect.” Dust, sea salt, soot, ammonium sulfate, nitrates, organic particles Gases (99.99999%) Aerosol particles I. Introduction: Earth’s Atmosphere
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II. Global Warming – the “Greenhouse Effect” In a greenhouse, UV radiation readily passes through glass. Absorbed by surfaces, it is converted to long- wavelength IR radiation (heat). IR radiation cannot pass through glass easily and is trapped, heating up the greenhouse. The greenhouse effect
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Energy Balance of the Earth Solar Radiation Longwave Radiation http://www.sc.doe.gov/ober/Atmospheric%20System%20Research%20Science%20Plan.pdf
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