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GEOL 2207 (204)
B.Ward (130)
Lecture

Global radiative forcing.docx

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Department
Geology
Course
GEOL 2207
Professor
B.Ward
Semester
Summer

Description
Global radiative forcing  Radiative forcing (RF): electromagnetic energy per unit time per unit area reaching top of the Earth’s atmosphere  Changes in any of the radiative fluxes  radiative imbalance  change in climate  Positive Radiative forcing  net increase in global mean temperature Overall radiative forcing, we’re definitely in the positive situation Greenhouse gases – Variable Gases  Carbon Dioxide o Causes heating o Can affect Ozone layer o Caused by burning of fossil fuels; cutting down trees o Has natural system, but we’re producing more than carbon sinks can absorb o In atmosphere for long period of time (50-200 years) o 55-60% of contr
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