The Chemistry of Climate Change

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The Chemistry of Climate Change
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Greenhouse Effect
300 nm
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(No Transcript)
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Greenhouse Gases
Species Absorption Region Estimated Global
Warming H2O 2.5, 3.5, 5-7 mm 110
Wm-2 CO2 14-19 mm 50 Wm-2 CH4 3-4,
7-8.5 mm 1.7 Wm-2 O3 9-10 mm 1.3 Wm-2
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Global Warming Potential
Due to species i
Due to CO2
Radiative forcing (net change in the flow of
radiative energy per unit mass)
Concentration of Greenhouse gas
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Global Warming Potential
Climate Change Indicator Integration Time
Period Maximum change in Temperature 100
years Rate of change in Temperature 20-50
years Maximum change in Sea Level gt100
years Rate of change in Sea Level gt50 years
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GAS GWP Carbon dioxide (CO2) 1 Methane
(CH4) 21 Nitrous oxide (N2O) 310 HFC-23 11
,700 HFC-32 2,800 HFC-125 1,300 HFC-134a
3,800 HFC-143a 140 HFC-152a 2,900 HFC-227e
a 2,900 HFC-236fa 6,300 HFC-4310mee 1,300
CF4 6,500 C2F6 9,200 SF6 23,900
Global Warming Potentials